学士（理学）, 岡山大学

修士（理学）, 岡山大学

博士（理学）, 岡山大学

人為位相制御による非線形光波長変換の自在操作

超高繰り返し光波制御

Natural sciences, Semiconductors, optical and atomic physics

01 Apr. 2009 - 31 Mar. 2014
国立大学法人岡山大学, 自然科学研究科, 先端基礎科学専攻, Japan

01 Apr. 2007 - 31 Mar. 2009
国立大学法人岡山大学, 自然科学研究科, 数理物理学専攻, Japan

01 Apr. 2003 - 31 Mar. 2007
国立大学法人岡山大学, 理学部, 物理学科, Japan

01 Apr. 2000 - 31 Mar. 2003
岡山県立倉敷南高校, Japan

Generating arbitrary polarization states by manipulating the thicknesses of a pair of uniaxial birefringent plates
Akihiro Tomura; Makoto Nomura; Chiaki Ohae; Masayuki Katsuragawa
Physical Review A, American Physical Society (APS), 109, 2, 28 Feb. 2024, Peer-reviwed
Scientific journal

高離散性スペクトル群に機能する振幅・位相・偏光の同軸上操作
桂川 眞幸; 大饗 千彰; 戸村 暁廣
レーザー研究, 52, 2, 68, Feb. 2024

Optimal design for wavelength conversion with a configuration of walk-off compensation in free space in the nanosecond pulsed regime
Chiaki Ohae; Kenji Hasegawa; Masato Nagano; Soma Tahara; Masayuki Katsuragawa
Lead, Optics Express, Optica Publishing Group, 31, 25, 41471-41471, 22 Nov. 2023, On the basis of standard wavelength conversion by the use of angular phase matching of nonlinear optical crystals arranged in free space, applicable to a wide range of wavelengths and laser intensities, we both numerically and experimentally present an optimal design for achieving near-full energy conversion while maintaining good TEM₀₀ mode property of fundamental laser radiation in the nanosecond regime.
Scientific journal

Engineering nonlinear optical phenomena by arbitrarily manipulating the phase relationship among the relevant optical fields
Weiyong Liu; Chiaki Ohae; Jian Zheng; Soma Tahara; Masaru Suzuki; Kaoru Minoshima; Hisashi Ogawa; Tetsushi Takano; Masayuki Katsuragawa
Communications Physics, 5, 179, Jul. 2022, Peer-reviwed
Scientific journal, English

Engineering of nonlinear optical processes by arbitrarily manioulating the relevant optical phases
W. Liu; C. Ohae; J. Zheng; S. Tahara; M. Suzuki; K. Minoshima; M. Katsuragawa
CLEO Technical Digest, CFP6I-02, Jan. 2022, Peer-reviwed

Continuous synthesis of arbitrary optical waveforms on a sub-femtosecond timescale
A. Tomura; C. Ohae; K. Nakagawa; K. Minoshima; M. Katsuragawa
CLEO Technical Digest, CWP2E-01, Jan. 2022, Peer-reviwed

10 W injection-locked single-frequency continuous-wave titanium:sapphire laser
Tetsushi Takano; Hisashi Ogawa; Chiaki Ohae; Masayuki Katsuragawa
optics express, 29, 6927, 2021, Peer-reviwed
Scientific journal, English

Engineered generation of a specfic Stokes order in stimulated Raman scattering process
W. Liu; C. Ohae; J. Zheng; S. Tahara; M. Suzuki; K. Minoshima; M. Katsuragawa
The 2020 CLEO, CLEO Technical Digest, SW3N.4, 2020, Peer-reviwed
International conference proceedings, English

Optical technology for arbitrarily manipulating amplitudes and phases of coaxially propagating highly discrete spectra
C. Zhang; K. Yoshii; D. Tregubov; C. Ohae; J. Zheng; M. Suzuki; K. Minoshima; M. Katsuragawa
Physical Review A, American Physical Society, 100, 5, 053836-1-053836-10, 18 Nov. 2019, Peer-reviwed
Scientific journal, English

Engineered generation of high order stimulated Raman scatterings
C. Ohae; W. Liu; J. Zheng; M. Suzuki; K. Minoshima; M. Katsuragawa
Nonlinear Optics (NLO), OSA Technical Digest, NTu1B.5, 2019, Peer-reviwed
International conference proceedings, English

Tailored Raman-resonant four-wave-mixing processes
C. Ohae; J. Zheng; K. Ito; M. Suzuki; K. Minoshima; M. Katsuragawa
Optics Express, OSA - The Optical Society, 26, 2, 1452-1460, 22 Jan. 2018, Peer-reviwed, Nonlinear optical processes are strongly dominated by phase relationships among electromagnetic fields involved. In this paper, we theoretically and experimentally show that in a Raman-resonant four-wave-mixing process, the first anti-Stokes and Stokes generations can be tailored in a variety of ways by manipulating the phase relationships among the relevant electromagnetic fields.
Scientific journal, English

Generation of 1.4-fs ultrafast single-cycle pulses with a repetition rate exceeding 100 THz by arbitrarily manipulating amplitude and phase
C. Zhang; K. Yoshii; D. Tregubov; C. Ohae; M. Suzuki; K. Minoshima; M. Katsuragawa
Optics InfoBase Conference Papers, OSA - The Optical Society, 2018, 2018, We report a new optical technology which enables arbitrarily manipulating amplitudes and phases of a highly-discrete optical spectrum and its application to generating a train of 1.4-fs ultrafast pulses with a repetition-rate exceeding 100 THz.
International conference proceedings, English

Continuous generation of ultrafast arbitrary optical waveform with a repetition rate exceeding 100 THz
C. Ohae; T. Gavara; K. Minoshima; M. Katsuragawa
Optics InfoBase Conference Papers, OSA - The Optical Society, 2018, 2018, We generate the five phase-locked harmonics having an exact integer frequency ratio 1ω, 2ω, 3ω, ω with a controlled carrier-envelope-phase. We also demonstrate the continuous generation of ultrafast optical amplitude waveforms with a repetition rate exceeding 100 THz.
International conference proceedings, English

Tailor-made Raman-resonant four-wave-mixing processes and their applications to optical devices
C. Ohae; J. Zheng; M. Suzuki; K. Minoshima; M. Katsuragawa
Optics InfoBase Conference Papers, OSA - The Optical Society, 2018, 2018, We theoretically and experimentally show the tailor-made Raman-resonant four-wavemixing process. We also demonstrate an attractive application of this tailored nonlinear frequency mixing as an optical device, namely, nonlinear Mach-Zehnder interferometer in the frequency domain.
International conference proceedings, English

Generation of five phase-locked harmonics in the continuous wave regime and its potential application to arbitrary optical waveform synthesis
N. Sheeda Suhaimi; C. Ohae; T. Gavara; K. Nakagawa; F. -L. Hong; M. Katsuragawa
THIRD INTERNATIONAL CONFERENCE ON APPLICATIONS OF OPTICS AND PHOTONICS, SPIE-INT SOC OPTICAL ENGINEERING, 10453, 10453-1-10453-6, 2017, Peer-reviwed, We have successfully generated a new broadband coherent light source in the continuous wave (CW) regime which is an ensemble of multi-harmonic radiations (2403, 1201, 801, 600 and 480 nm) by implementing a frequency dividing technology. The system is uniquely designed that all the harmonics are generated and propagate coaxially which gives the advantage of robustly maintaining the phase coherence among the harmonics. The highlight is its huge potential for the arbitrary optical waveform synthesis in the CW regime which has not been performed yet due to the limitation of the existing light source.
International conference proceedings, English

Tailored nonlinear optical process - toward realization of broadly-tunable single-frequency laser in the extreme wavelength region -
J. Zheng; C. Ohae; K. Ito; M. Suzuki; K. Minoshima; M. Katsuragawa
The 24th Congress of the International Comission for Optics (ICO-24), unknown, 2017
International conference proceedings, English

Ultrafast Pulse Train with a repetition rate above 100 THz in the continuous-wave regime
C. Ohae; N. S. Suhaimi; T. Gavara; K. Nakagawa; F. -L. Hong; K. Minoshima; M. Katsuragawa
The 24th Congress of the International Comission for Optics (ICO-24), unknown, 2017
International conference proceedings, English

Simple optical technology to arbitrarily manipulate amplitude and phase and its application to generation of ultrafast pulses above 100 THz repetition rate
C. Zhang; D. Tregubov; K. Yoshii; C. Ohae; M. Suzuki; K. Minoshima; M. Katsuragawa
The 24th Congress of the International Comission for Optics (ICO-24), unknown, 2017
International conference proceedings, English

Ultrafast pulse train at a 125-THz repetition rate in the CW regime
C. Ohae; N. S. Suhaimi; T. Gavara; K. Nakagawa; F. L. Hong; K. Minoshima; M. Katsuragawa
Optics InfoBase Conference Papers, OSA - The Optical Society, 2017, 2017, We report on the synthesis of an ultrashort pulse train with a repetition rate of 125 THz by tailoring the phases and amplitudes of five phase-locked harmonics with an extremely-wide frequency spacing.
International conference proceedings, English

Tailored nonlinear optical process by manipulating the relative phases among the relevant electromagnetic fields
C. Ohae; J. Zheng; K. Ito; M. Suzuki; K. Minoshima; M. Katsuragawa
Optics InfoBase Conference Papers, OSA - The Optical Society, 2017, 2017, We describe tailoring nonlinear optical process by manipulating the spectral phases among the relevant electromagnetic fields. We demonstrate, as a typical example, an efficient generation of Stokes or anti-Stokes component in the Raman-resonant four-wave-mixing process.
International conference proceedings, English

Single-atom response of helium atoms to pulses from an EUV free-electron laser: Implications for the subsequent development of superfluorescence
James R. Harries; Chiaki Ohae; Susumu Kuma; Kyo Nakajima; Tadashi Togashi; Yuki Miyamoto; Noboru Sasao; Hiroshi Iwayama; Mitsuru Nagasono; Makina Yabashi; Eiji Shigemasa
PHYSICAL REVIEW A, AMER PHYSICAL SOC, 94, 6, 063416, Dec. 2016, Peer-reviwed, Using multilevel (161-level) numerical simulations beyond the rotating-wave approximation, we investigate the single-atom response of helium to intense pulses of radiation with properties characteristic of a self-amplified spontaneous emission (SASE) free-electron laser (FEL) source, and central wavelengths resonant with 1snp excitation (n = 3,4). The results show a complete breakdown of the two-level approximation and suggest that, under typical experimental conditions, levels other than the resonant level are significantly populated. We discuss the implications for the subsequent development of superfluorescence (a collective effect) from the excited atomic medium and compare the results to recent experiments.
Scientific journal, English

Dual-frequency injection-locked continuous-wave near-infrared laser
Trivikramarao Gavara; Takeru Ohashi; Yusuke Sasaki; Takuya Kawashima; Hiroaki Hamano; Ryo Yoshizaki; Yuki Fujimura; Kazumichi Yoshii; Chiaki Ohae; Masayuki Katsuragawa
optics letters, 41, 13, 2994-2997, 23 Jun. 2016, Peer-reviwed
Scientific journal, English

Multiple-wavelength injection-locked continuous-wave titanium sapphire laser
Gavara Trivikramarao; Ohashi Takeru; Sasaki Yusuke; Kawashima Takuya; Hamano Hiroaki; Yoshizaki Ryo; Fujimura Yuki; Yoshii Kazumichi; Ohae Chiaki; Katsuragawa Masayuki
Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, 71, 525-525, 2016,

We report a multiple wavelength injection-locked continuous-wave Titanium sapphire laser. It consists of a Ti:sapphire ring laser as a power oscillator, two diode-lasers as seed lasers, and a high finesse master cavity as a frequency reference. Stable dual-wavelength injection-locked oscillation is achieved with a watt level output powers at both oscillating wavelengths.We show the single transverse and longitudinal mode characteristics, and power stability. Also, we demonstrate arbitrary selectivity of the two frequencies and flexible control of their relative powers.

Japanese

Superfluorescence/superradiance emitted following excitation of helium atoms with EUV-FEL radiation resonant to 1s4p excitation: experiment and simulation
Harries James R; Iwayama H; Kuma S; Miyamoto Y; Nagasono M; Ohae C; Togashi T; Nakajima K; Shigemasa E; Sasao N
Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, 71, 541-541, 2016,

1s4p励起共鳴波長52.2nmのEUV-FELで励起された原子集団から放出される超蛍光・超放射について報告する。実験では668nm(1s3d-1s2p)の超蛍光の遅延時間、パルス幅を測定した。この遷移における超蛍光発展のメカニズムを解明するために数値計算も行ったので詳細について報告する。

Japanese

Generation and application of five phase-locked harmonics in the continuous wave regime
C. Ohae; S. Suhaimi; T. Gavara; K. Nakagawa; F. -L. Hong; K. Minoshima; M. Katsuragawa
2016 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO), IEEE, 2016, Peer-reviwed, We report generation of five phase-locked harmonics with an exact integer frequency-ratio of 1:2:3:4:5 in the continuous-wave regime by implementing a divide-by-three optical-frequency division technology in the harmonic generation process.
International conference proceedings, English

Simultaneous measurements of superradiance at multiple wavelength from helium excited states: II. Analysis
Chiaki Ohae; James R. Harries; Hiroshi Iwayama; Kentarou Kawaguchi; Susumu Kuma; Yuki Miyamoto; Mitsuru Nagasono; Kyo Nakajima; Itsuo Nakano; Eiji Shigemasa; Noboru Sasao; Satoshi Uetake; Tomonari Wakabayashi; Akihiro Yoshimi; Koji Yoshimura; Motohiko Yoshimura
Journal of the Physical Society of Japan, Physical Society of Japan, 85, 3, 034301, 2016, Peer-reviwed, Previous experimental studies of superradiance (SR) in multi-level systems have been explainable using the predictions of the well-known simple two-level SR model. However our recent study [K. Nakajima et al., J. Phys. Soc. Jpn. 84, 054301 (2015)] using EUV free-electron laser excitation of helium atoms, where SR was observed at wavelengths of 502, 668, and 728 nm, revealed behaviour which necessitates a full multi-level treatment of the SR development. In this paper, we report simulations of the initial excitation by the FEL pulses, and the subsequent development of multi-level SR. The results of the simulation reproduce the experimental findings, and reveal that competitive SR on two transitions with a common upper level plays an important role in the development of the system.
Scientific journal, English

Generation of five phase-locked harmonics by implementing a divide-by-three optical frequency divider
Nurul Sheeda Suhaimi; Chiaki Ohae; Trivikramarao Gavara; Ken'ichi Nakagawa; Feng Lei Hong; Masayuki Katsuragawa
OPTICS LETTERS, OPTICAL SOC AMER, 40, 24, 5802-5805, Dec. 2015, Peer-reviwed, We report the generation of five phase-locked harmonics, f(1):2403 nm, f(2):1201 nm, f(3):801 nm, f(4):600 nm, and f(5):480 nm with an exact frequency ratio of 1:2:3:4:5 by implementing a divide-by-three optical frequency divider in the high harmonic generation process. All five harmonics are generated coaxially with high phase coherence in time and space, which are applicable for various practical uses. (C) 2015 Optical Society of America
Scientific journal, English

Rate amplification of the two photon emission from para-hydrogen toward the neutrino mass measurement
Takahiko Masuda; Hideaki Hara; Yuki Miyamoto; Susumu Kuma; Itsuo Nakano; Chiaki Ohae; Noboru Sasao; Minoru Tanaka; Satoshi Uetake; Akihiro Yoshimi; Koji Yoshimura; Motohiko Yoshimura
HYPERFINE INTERACTIONS, SPRINGER, 236, 1-3, 73-77, Nov. 2015, Peer-reviwed, We recently reported an experiment which focused on demonstrating the macro-coherent amplification mechanism. This mechanism, which was proposed for neutrino mass measurements, indicates that a multi-particle emission rate should be amplified by coherence in a suitable medium. Using a para-hydrogen molecule gas target and the adiabatic Raman excitation method, we observed that the two photon emission rate was amplified by a factor of more than 10(15) from the spontaneous emission rate. This paper briefly summarizes the previous experimental result and presents the current status and the future prospect.
International conference proceedings, English

A streak camera study of superfluorescence at multiple wavelengths from helium atoms excited using free electron laser pulses
J. R. Harries; H. Iwayama; M. Nagasono; T. Togashi; M. Yabashi; S. Kuma; K. Nakajima; Y. Miyamoto; C. Ohae; N. Sasao; E. Shigemasa
Journal of Physics B, 48, 105002, 14 Apr. 2015, Peer-reviwed
Scientific journal, English

Simultaneous Measurements of Super-Radiance at Multiple Wavelengths from Helium Excited States: I. Experiment
K. Nakajima; J. R. Harries; H. Iwayama; S. Kuma; Y. Miyamoto; M. Nagasono; C. Ohae; T Togashi; M. Yabashi; E. Shigemasa; N. Sasao
Journal of Physical Society of Japan, The Physical Society of Japan, 84, 5, 054301-1-7, 07 Apr. 2015, Peer-reviwed, In this paper, we report the results of measurements of the intensities and delays of super-radiance decays from excited helium atoms at multiple wavelengths. The experiment was performed using extreme ultraviolet radiation produced by the free electron laser at the SPring-8 Compact SASE Source test accelerator facility as an excitation source. We observed super-radiant transitions on the 1s3p→ 1s2s(λ = 502 nm), 1s3d→ 1s2p(λ = 668 nm), and 1s3s→ 1s2p(λ = 728 nm) transitions. The pulse energy of each transition and its delay time were measured as a function of the target helium gas density. Several interesting features of the data, some of which appear to contradict with the predictions of the simple two-level super-radiance theory, are pointed out.
Scientific journal, English

24aBG-11 Superradiance in multi-level He atoms excited by EUV-FEL (I) Experiment
Nakajima K.; HARRIES James R.; Iwayama H.; Kuma S.; Miyamoto Y.; Nggasono M.; Ohae C.; Togashi T.; Shigemasa E.; Sasao N.
Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan (JPS), 70, 771-771, 2015
Japanese

24aBG-12 Superradiance in multi-level He atoms excited by EUV-FEL (II) Analysis
Ohae Chiaki; HARRIES James R.; Iwayama Hiroshi; Kuma Susumu; Miyamoto Yuki; Nggasono Mitsuru; Nakajima Kyo; Shigemasa Eiji; Wakabayashi Tomonari; Sasao Noboru
Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan (JPS), 70, 772-772, 2015
Japanese

Observation of coherent two-photon emission from the first vibrationally excited state of hydrogen molecules
Yuki Miyamoto; Hideaki Hara; Susumu Kuma; Takahiko Masuda; Itsuo Nakano; Chiaki Ohae; Noboru Sasao; Minoru Tanaka; Satoshi Uetake; Akihiro Yoshimi; Koji Yoshimura; Motohiko Yoshimura
PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, OXFORD UNIV PRESS INC, 2014, 11, 113C01, Nov. 2014, Peer-reviwed, In this paper, we describe an experiment which was conducted to explore the macro-coherent amplification mechanism using a two-photon emission process from the first vibrationally excited state of the para-hydrogen molecule. Large coherence in the initial state was prepared by the adiabatic Raman method, and the lowest Stokes sideband was used as a trigger field. We observed coherent two-photon emission consistent with the expectation of the Maxwell-Bloch equation derived for the process, whose rate is larger by many orders of magnitude than that of spontaneous emission.
Scientific journal, English

Production of Ba Metastable State via Superradiance
C. Ohae; A. Fukumi; S. Kuma; Y. Miyamoto; K. Nakajima; I. Nakano; H. Nanjo; N. Sasao; S. Uetake; T. Wakabayashi; A. Yoshimi; M. Yoshimura
Journal of Physical Sciety of Japan, 83, 044301, 13 May 2014, Peer-reviwed
Scientific journal, English

Neutrino spectroscopy with atoms and molecules
Atsushi Fukumi; Susumu Kuma; Yuki Miyamoto; Kyo Nakajima; Itsuo Nakano; Hajime Nanjo; Chiaki Ohae; Noboru Sasao; Minoru Tanaka; Takashi Taniguchi; Satoshi Uetake; Tomonari Wakabayashi; Takuya Yamaguchi; Akihiro Yoshimi; Motohiko Yoshimura
PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, OXFORD UNIV PRESS INC, 04D002, 1, 1-85, 2012, Peer-reviwed, We systematically investigate the new experimental method of using atoms or molecules to measure the important parameters of neutrinos that are still to be determined: the absolute mass scale, the mass hierarchy pattern (normal or inverted), the neutrino mass type (Majorana or Dirac), and the CP-violating phases, including Majorana phases. Most of these observables are difficult to measure in neutrino oscillation experiments. There are advantages to using atomic targets, such as the closeness of available atomic energies to anticipated neutrino masses, over nuclear target experiments such as the end point spectrum of beta decay and two-electron line spectrum in the neutrinoless double beta decay, both of which address some of the overlapping objectives with atomic/molecular experiments. A disadvantage of using atomic targets, the smallness of rates, is overcome by the macro-coherent amplification mechanism. The atomic or molecular process we use is a cooperative deexcitation of a collective body of atoms in a metastable level vertical bar e > emitting a neutrino pair and a photon: vertical bar e > -> vertical bar g > + gamma + nu(i)nu(j), where nu(i)s are neutrino mass eigenstates. The macro-coherence is developed by trigger-laser irradiation of two colors, which frequently causes the two-photon process vertical bar e > <-> vertical bar g > + gamma + gamma, vertical bar e > + gamma <-> vertical bar g > + gamma inside the target. We discuss important aspects of the macro-coherence development in detail, by setting up the master equation for the target Bloch vector (whose components are population difference and medium polarization) and the propagating electric field. Our master equation includes the effects of phase decoherence of medium polarization and decay of population difference. The spectral rate (the number of events per unit time) of macro-coherent radiative emission of a neutrino pair has three parts, and is given by a factorized formula of the form (overall omega-independent rate denoted by Gamma(0)) x (spectral shape function denoted by I (omega)) x (time-evolving dynamical factor), where omega is the photon energy. The constant factor Gamma(0) determines the overall rate in the unit of 1/time, and for Xe it is of the order of 1Hz(n/10(22) cm(-3))(3) (V/10(2) cm(3)). The dynamical factor is time dependent and is given by the space integrated quantity, over the entire target, of the product of the magnitude squared of the coherent polarization and the field strength (in the units of the maximally extractable energy density) stored inside the target. The asymptotic value of the time-evolving dynamical factor is given by the contribution of the field condensate accompanied by macroscopic coherence, which is calculated using the static limit of the master equation. With an appropriate choice of heavy target atoms or molecules such as Xe and I-2 that have a large M1 x E1 matrix element between vertical bar e > and vertical bar g >, we show that one can determine three neutrino masses along with distinction of the mass hierarchy pattern (normal or inverted) by measuring the spectral shape I (omega).
If one uses a target of available energy of a fraction of 1 eV, the most experimentally challenging observable, the Majorana CP phases may be determined, comparing the detected rate with differences of theoretical expectations which exist at the level of several percent. The Majorana CP-violating phase is expected to be crucial to the understanding of the matter-antimatter imbalance in our universe. Our master equation, when applied to E1 x E1 transitions such as pH(2) vibrational Xv = 1 -> 0, can describe explosive paired superradiance events in which most of the energy stored in vertical bar e > is released in the order of a few nanoseconds. The present paper is intended to be self-contained, explaining some details of related theoretical works in the past, and reports on new simulations and the ongoing experimental efforts of the project to realize neutrino mass spectroscopy using atoms/molecules.
Scientific journal, English

Search for Paired Superradiance Using Metastable State of Atomic Barium
C. Ohae; A. Fukumi; S. Kuma; N. Nakajima; I. Nakano; H. Nanjo; C. Ohae; N. Sasao; M. Tanaka; S. Uetake; T. amaguchi; M. Yoshimura; K. Yuasa
Proceeding of 5th International Workshop on Fundamental Physics Using Atoms, 2011, 143-145, 2011
International conference proceedings, English

Macro-coherent two photon and radiative neutrino pair emission
M. Yoshimura; C. Ohae; A. Fukumi; K. Nakajima; I. Nakano; H. Nanjo; N. Sasao
arXiv, 0805.1970v1, 2008
English

中赤外から真空紫外全域で波長可変な単一周波数レーザーの開発
大饗 千彰; 劉 衛永; 鄭 健; 鎌倉 周平; 鈴木 勝; 桂川 眞幸
Lead, Sep. 2023, フォトニクスニュース, 9, 2, 20a-B204-2

Resonance-scattering Lidar observation over an entire night targeting Ca and Ca⁺ distributed in the ultrahigh atmosphere region
橋本彩香; 音瀬めぐみ; 小林蒼汰; 大饗千彰; 大饗千彰; 桂川眞幸; 桂川眞幸; 桂川眞幸; 江尻省; 江尻省; 西山尚典; 西山尚典; 中村卓司; 中村卓司
2023, 応用物理学会春季学術講演会講演予稿集(CD-ROM), 70th, 2436-7613, 202302244199370668

Engineering of nonlinear optical phenomena by manipulating relative phases of the relevant optical fields
大饗千彰; 大饗千彰; LIU W.; ZHENG J.; 佐藤昂大; 鈴木勝; 鈴木勝; 美濃島薫; 美濃島薫; 小川尚史; 高野哲至; 桂川眞幸; 桂川眞幸
2023, 応用物理学会春季学術講演会講演予稿集(CD-ROM), 70th, 2436-7613, 202302257488551787

Injection-locked nanosecond pulsed Ti:sapphire system for observation of Ca⁺ and Ca
橋本彩香; 音瀬めぐみ; 小林蒼汰; 大饗千彰; 大饗千彰; 桂川眞幸; 桂川眞幸; 江尻省; 中村卓司; 西山尚典
2022, 応用物理学会秋季学術講演会講演予稿集(CD-ROM), 83rd, 2758-4704, 202302215035371506

Injection-locked nanosecond pulsed laser for the Ca⁺ and Ca LiDAR
Otose Megumi; Watanabe Tetsuhito; Hayashi Yuto; Ohae Chiaki; Katsuragawa Masayuki; Ejiri Mitsumu K.; Nakamura Takuji
The Japan Society of Applied Physics, 26 Aug. 2020, JSAP Annual Meetings Extended Abstracts, 2020.2, 737-737, Japanese, 2436-7613

スペクトル離散性が極めて高い光周波数コムが拓く光学過程の新しい可能性
桂川眞幸; 大饗千彰; Jian Zheng; 美濃島薫
オプトロニクス社, Oct. 2017, オプトロニクス, 2017, 10, 106-110, Japanese, Invited, Introduction scientific journal, 0286-9659, 40021357984, AN00360965

共鳴散乱ライダー光源としての注入同期チタンサファイアパルスレーザー開発
古川裕介; 大饗千彰; 隈元清哉; 米田仁紀; 桂川眞幸; 桂川眞幸; 江尻省; 西山尚典; 中村卓司
2017, 極域科学シンポジウム(Web), 8th, 201802280224062190

スペクトル離散性の高い広帯域コヒーレント光源の振幅および位相の任意操作
大饗千彰; 吉井一倫; Trivikramarao Gavara; 桂川眞幸
レーザー学会, 2017, レーザー研究, 45, 6, 319-323, Japanese, Peer-reviwed, Introduction scientific journal, 0387-0200, 40021244721, AN00255326

22pBK-8 光周波数分周と位相同期高調波光の生成
大饗 千彰; Suhaimi Nurul Sheeda; Gavara Trivikramarao; 中川 賢一; 洪 鋒雷; 桂川 眞幸
一般社団法人 日本物理学会, 2016, 日本物理学会講演概要集, 71, 0, 833-833, Japanese, 2189-079X, 110010056859, AA12721570

Frequency Division in the Optical Frequency Region and Generation of Phase-Locked High Harmonics
大饗 千彰; SUHAIMI Nurul Sheeda; GAVARA Trivikramarao
レーザー学会, Aug. 2015, レーザー研究 = The review of laser engineering : レーザー学会誌, 43, 8, 517-520, Japanese, 0387-0200, 40020569210, AN00255326

光周波数の分周と位相同期高調波光の発生
大饗 千彰; Nurul Sheeda SUHAIMI; Trivikramarao GAVARA; 中川 賢一; 洪 鋒雷; 桂川 眞幸
Aug. 2015, レーザー研究, 43, 8, 1-4, Japanese, Peer-reviwed, Introduction scientific journal

19aSJ-7 Demonstration of macro-coherent amplification by observing a coherent two-photon emission from hydrogen molecules
Uetake Satoshi; Hara Hideaki; Katsuragawa Masayuki; Kuma Susumu; Masuda Takahiko; Miyamoto Yuki; Nakano Itsuo; Ohae Chiaki; Sasao Noboru; Tanaka Minoru; Tsutsumi Kosuke; Yoshimi Akihiro; Yoshimura Koji; Yoshimura Motohiko
The Physical Society of Japan (JPS), 22 Aug. 2014, Meeting abstracts of the Physical Society of Japan, 69, 2, 22-22, Japanese, 1342-8349, 110009873370, AA11439205

9pAW-11 Coherent two-photon emission from the vibrational excited states of hydrogen molecules I
Miyamoto Yuki; Hara Hideaki; Katsuragawa Masayuki; Kuma Susumu; Masuda Takahiko; Nakano Itsuo; Ohae Chiaki; Sasao Noboru; Tanaka Minoru; Tsutumi Kousuke; Uetake Satoshi; Yoshimi Akihiro; Yoshimura Koji; Yoshimura Motohiko
The Physical Society of Japan (JPS), 22 Aug. 2014, Meeting abstracts of the Physical Society of Japan, 69, 2, 92-92, Japanese, 1342-8349, 110009875519, AA11439205

9pAW-12 Coherent two photon emission from the vibrational excited state of hydrogen molecules II
Hara Hideaki; Katsuragawa Masayuki; Kuma Susumu; Masuda Takahiko; Miyamoto Yuki; Nakano Itsuo; Ohae Chiaki; Sasao Noboru; Tanaka Minoru; Tsutsumi Kousuke; Uetake Satoshi; Yoshimi Akihiro; Yoshimura Koji; Yoshimura Motohiko
The Physical Society of Japan (JPS), 22 Aug. 2014, Meeting abstracts of the Physical Society of Japan, 69, 2, 93-93, Japanese, 1342-8349, 110009875520, AA11439205

Spectroscopy for production of macro-coherence in metastable Xe
Yoshimi A.; Sasao N.; Uetake S.; Kuma S.; Nakajima K.; Ohae C.; Miyamoto Y.; Kawaguchi K.; Tsutsumi Y.; Tang J.; Fukumi A.; Tanaka M.; Nakano I.; Wakabayashi T.; Yoshimura K.; Yoshimura M.
The Physical Society of Japan (JPS), 26 Aug. 2013, Meeting abstracts of the Physical Society of Japan, 68, 2, 16-16, Japanese, 1342-8349, 110009754175, AA11439205

27pEB-7 Simultaneous measurement of superradiance from competitive transitions in atomic helium using EUV-FEL
Nakajima K.; Fukumi A.; Iwayama H.; Kawaguchi K.; Kuma S.; Miyamoto Y.; Nakano I.; Nakashima Y.; Nanjyo H.; Ohae C.; Sasao N.; Shigemasa E.; Takahashi H.; Tanaka M.; Tang J.; Uetake S.; Wakabayashi T.; Yoshimi A.; Yoshimura M.
The Physical Society of Japan (JPS), 26 Mar. 2013, Meeting abstracts of the Physical Society of Japan, 68, 1, 215-215, Japanese, 1342-8349, 110009643182, AA11439205

25pAD-3 Two-photon paired superradiance experiment using solid parahydrogen
Kuma S.; Miyamoto Y.; Nakajima K.; Uetake S.; Ohae C.; Kawaguchi K.; Sasao N.; Tanaka M.; Tang J.; Nakano I.; Nanjo H.; Fukumi A.; Momose T.; Yamaguchi T.; Yuasa K.; Yoshimi A.; Yoshimura M.; Wakabayashi T.
The Physical Society of Japan (JPS), 05 Mar. 2012, Meeting abstracts of the Physical Society of Japan, 67, 1, 207-207, Japanese, 1342-8349, 110009565561, AA11439205

27pAB-5 Emission Spectra of Bi and Yb Atoms in Solid Neon Matrices
Wakabayashi T.; Tomioka M.; Yamaguchi T.; Kuma S.; Miyamoto Y.; Nakajima K.; Uetake S.; Oae C.; Kawaguchi K.; Sasao N.; Tanaka M.; Tang J.; Nakano I.; Nanjo H.; Fukumi A.; Momose T.; Yoshimi A.; Yoshimura M.
The Physical Society of Japan (JPS), 05 Mar. 2012, Meeting abstracts of the Physical Society of Japan, 67, 1, 240-240, Japanese, 1342-8349, 110009565682, AA11439205

27pAB-6 窒素内包フラーレンN@C_<60>の真空紫外分光(27pAB 原子分子(原子分子一般),領域1(原子・分子,量子エレクトロニクス,放射線物理))
山口 琢也; 植竹 智; 大饗 千彰; 久間 晋; 笹尾 登; 田中 実; 中嶋 享; 中野 逸夫; 南條 創; 福見 敦; 湯浅 一生; 吉見 彰洋; 吉村 太彦; 若林 知成
一般社団法人日本物理学会, 05 Mar. 2012, 日本物理学会講演概要集, 67, 1, 240-240, Japanese, 1342-8349, 110009565683, AA11439205

27pAB-7 Simultaneous measurement of superradiance from competitive transitions in atomic rubidium
Nakajima K.; Fukumi A.; Kuma S.; Nakano I.; Nakashima Y.; Nanjyo H.; Ohae C.; Sasao N.; Takahashi H.; Uetake S.; Yamaguchi T.; Yoshimi A.; Yoshimura M.; Yuasa K.
The Physical Society of Japan (JPS), 05 Mar. 2012, Meeting abstracts of the Physical Society of Japan, 67, 1, 241-241, Japanese, 1342-8349, 110009565684, AA11439205

26aRF-9 Simultaneous branching ratio measurements of superradiance from atomic Rubidium transitions from 6P_<1/2> to 6S_<1/2> and from 6P_<1/2> to 4D_<3/2>
Sato S.; Fukumi A.; Kuma S.; Nakajima K.; Nakano I.; Nanjo H.; Ohae C.; Sasao N.; Taniguchi T.; Yamaguchi T.; Yoshimura M.; Yuasa K.
The Physical Society of Japan (JPS), 18 Aug. 2010, Meeting abstracts of the Physical Society of Japan, 65, 2, 165-165, Japanese, 1342-8349, 110008097070, AA11439205

14pSK-5 Spectroscopy of Electronic Excited States of Xe Atoms in Parahydrogen Crystal
Nakajima K.; Fukumi A.; Kawaguchi K.; Kuma S.; Miyamoto Y.; Momose T.; Nakano I.; Nanjyo H.; Ohae C.; Sasao N.; Sato S.; Taniguchi T.; Tang J.; Wakabayashi T.; Yamaguchi T.; Yoshimura M.; Yuasa K.
The Physical Society of Japan (JPS), 18 Aug. 2010, Meeting abstracts of the Physical Society of Japan, 65, 2, 22-22, Japanese, 1342-8349, 110008096541, AA11439205

23pTC-10 窒素原子内包フラーレンN@C_<60>の高純度化と分光(2)(23pTC 原子分子,領域1(原子・分子,量子エレクトロニクス,放射線物理))
山口 琢也; 内音坊 僚平; 大饗 千彰; 岡林 裕介; 笹尾 登; 佐藤 晴一; 谷口 敬; 中嶋 享; 中野 逸夫; 南條 創; 福見 敦; 吉川 愛里; 吉村 太彦; 若林 知成
一般社団法人日本物理学会, 01 Mar. 2010, 日本物理学会講演概要集, 65, 1, 219-219, Japanese, 1342-8349, 110007654604, AA11439205

10aSA-2 Neutrino Mass Spectroscopy Using Macro-coherence of Target Atoms (VII) : Population of Metastable State in Atomic Barium Using Raman Superradiance
大饗 千彰; 内音坊 遼平; 笹尾 登; 佐藤 晴一; 中嶋 享; 中野 逸夫; 南條 創; 福見 敦; 山口 琢也; 吉村 太彦
The Physical Society of Japan (JPS), 18 Aug. 2009, Meeting abstracts of the Physical Society of Japan, 64, 2, 19-19, Japanese, 1342-8349, 110007501480, AA11439205

10aSA-1 Neutrino Mass Spectroscopy Using Macro-coherence of Target Atoms(VI) : Measurement of Cascade Superradiance in Atomic Rubidium
Sato Seiichi; Fukumi Atsushi; Nakajima Kyo; Nakano Itsuo; Nanjo Hajime; Ohae Chiaki; Sasao Noboru; Uchionbo Ryouhei; Yamaguchi Takuya; Yoshimura Motohiko
The Physical Society of Japan (JPS), 18 Aug. 2009, Meeting abstracts of the Physical Society of Japan, 64, 2, 18-18, Japanese, 1342-8349, 110007501479, AA11439205

10aSA-3 Neutrino Mass Spectroscopy Using Macro-coherence of Target Atoms (VIII) : Spectroscopy of Isolated Atoms in Low-temperature Matrices
Nakajima K.; Fukumi A.; Nakano I.; Nanjyo H.; Ohae C.; Sasao N.; Sato S.; Uchionbo R.; Wakabayashi T.; Yamaguchi T.; Yoshimura M.
The Physical Society of Japan (JPS), 18 Aug. 2009, Meeting abstracts of the Physical Society of Japan, 64, 2, 19-19, Japanese, 1342-8349, 110007501481, AA11439205

26pZE-4 Fundamental Study on Neutrino Pair Emission using Atoms III : Applications of Infrared-Microwave Spectroscopy
Nakajima K; Bekku S; Wakabayashi T; Sasao N; Nanjo H; Fukumi A; Nakano I; Yoshimura M; Ohae C; Okabayashi Y; Koda Y; Sato S; Takahashi T
The Physical Society of Japan, 2008, Meeting Abstracts of the Physical Society of Japan, 63, 0, 32-32, Japanese, 1342-8349, 110007143927, AA11439205

22aZB-11 Towards measuring neutrino pair production using atomic transition
Ohae Chiaki; Okabayashi Yusuke; Kouda Yasunari; Sato Seiichi; Takahashi Toru; Bekku Satoshi; Wakabayashi Tomoaki; Nakajima Kyo; Fukumi Atsushi; Nakano Itsuo; Yoshimura Motohiko; Sasao Noboru; Nanjo Hajime
The Physical Society of Japan (JPS), 21 Aug. 2007, Meeting abstracts of the Physical Society of Japan, 62, 2, 24-24, Japanese, 1342-8349, 110007194140, AA11439205

Engineerng nonlinear optical process with random exploration of the optimal phase relationships
Chiaki Ohae; Weiyong Liu; Shuhei Kamakura; Shoki Tajima; Masaru Suzuki; Masayuki; Katsuragawa
Poster presentation, English, Conference on Lasers and Electro-Optics 2024, Peer-reviewed
May 2024

二波⻑注⼊同期ナノ秒パルスチタンサファイアレーザーの波⻑帯域拡⼤
橋本 彩香; 渡邊 哲人; 小林 蒼汰; 三好 咲也子; 大饗 千彰; 桂川 眞幸
Oral presentation, 応用物理学会
Mar. 2024

超高層大気中に分布する流星起源Ca原子・イオン同時観測用ライダーシステム
小林 蒼汰; 橋本 彩香; 音瀬 めぐみ; 三好 咲也子; 大饗 千彰; 桂川 眞幸; 江尻 省; 西山 尚典; 中村 卓司
Oral presentation, レーザー学会
Jan. 2024

CW領域での任意光波生成に向けた高離散スペクトルの偏波制御法
戸村 暁廣; 野村 誠; 大饗 千彰; 桂川 眞幸
Oral presentation, レーザー学会
Jan. 2024

光位相の任意制御による非先鋭光学過程の自在な操作
大饗 千彰; 劉 衛永; 鄭 健; 鎌倉周平; 鈴木 勝; 桂川 眞幸
Invited oral presentation, レーザー学会
Jan. 2024

光位相の自在制御に基づく高効率・オンデマンドな光波長変換
大饗 千彰; 劉 衛永; 鄭 健; 鈴木 勝; 桂川 眞幸
Oral presentation, 応用物理学会
Sep. 2023

ナノ秒パルスレーザー光の深紫外域への高品質・高効率な波長変換
吉野 健斗; 小瀬村 輝; 大久保 直幸; 豊永 大貴; 永野 正統; 長谷川 健司; 大饗 千彰; 桂川 眞幸
Oral presentation, 応用物理学会
Sep. 2023

波長板の厚み制御を用いた高離散スペクトルの任意偏波状態制御法
戸村 暁廣; 野村 誠; 大饗 千彰; 桂川 眞幸
Oral presentation, 応用物理学会
Sep. 2023

超高層大気の観測を目的とした二波長同時発振・注入同期・ナノ秒パルスチタンサファイアレーザーの開発
橋本 彩香; 音瀬 めぐみ; 小林 蒼汰; 三好 咲也子; 大饗 千彰; 桂川 眞幸; 江尻 省; 西山 尚典; 中村 卓司
Oral presentation, 応用物理学会
Sep. 2023

Proof-of-principle experiment of engineering in nonlinear optical process by arbitrarily manipulating phase relationships of the relevant optical fields
C. Ohae; W. Liu; J. Zheng; M. Katsuragawa
Invited oral presentation, 53-th Winter Colloquium on the Physics of Quantum Electronics (PQE-2023), Invited
Jan. 2023

Novel light sources for quantum sensors and simulators
T. Takano; H. Ogawa; W. Liu; C. Ohae; M. Katsuragawa
Poster presentation, English, Quantum sensors and tests of new physics, International conference
Oct. 2022

中間圏界面の金属原子層観測を目的とする注入同期ナノ秒パルスチタンサファイアレーザーの開発
橋本 彩香; 音瀬 めぐみ; 小林 蒼汰; 大饗 千彰; 桂川 眞幸; 江尻 省; 中村 卓司; 西山 尚典
Oral presentation, Japanese, 応用物理学会, Domestic conference
Sep. 2022

光の位相の自在な操作を用いたオンデマンドな波長変換
佐藤 昂大; 大饗 千彰; 劉 衛永; 鈴木 勝; 桂川 眞幸
Oral presentation, Japanese, 応用物理学会, Domestic conference
Sep. 2022

深紫外領域への高効率・高品質な波長変換
大久保 直幸; 豊永 大貴; 永野 正統; 長谷川 健司; 大饗千彰; 桂川眞幸
Oral presentation, Japanese, 応用物理学会, Domestic conference
Sep. 2022

Novel routes in optical processes
C. Ohae; W. Liu; J. Zheng; M. Katsuragawa
Invited oral presentation, English, 15th Asia Pacific Physics Conference (APPC15), Invited, International conference
Aug. 2022

Engineering of nonlinear optical processes by arbitrarily manioulating the relevant optical phases
W. Liu; C. Ohae; J. Zheng; S. Tahara; M. Suzuki; K. Minoshima; M. Katsuragawa
Oral presentation, English, CLEO-PR, International conference
Aug. 2022

Continuous synthesis of arbitrary optical waveforms on a sub-femtosecond timescale
A. Tomura; C. Ohae; K. Nakagawa; K. Minoshima; M. Katsuragawa
Oral presentation, English, CLEO-PR, International conference
Aug. 2022

Progress in engineering nonlinear optical phenomena by arbitrarily manipulating the relevant optical phase
C. Ohae; W. Liu; J. Zheng; M. Katsuragawa
Invited oral presentation, 30th International Laser Physics Workshop (LPHYS’22), Invited
Jul. 2022

共鳴散乱ライダーによる中間圏・熱圏下部金属層観測のためのレーザーシステムの開発
音瀬 めぐみ; 佐藤 昂大; 橋本彩香; 大饗 千彰; 桂川 眞幸
Poster presentation, Japanese, 応用物理学会, Domestic conference
Mar. 2022

共鳴散乱ライダーによる中間圏・熱圏下部金属層観測のためのレーザーシステムの開発
音瀬めぐみ; 佐藤昂大; 橋本彩香; 大饗千彰; 桂川眞幸; 江尻省; 中村卓司
Oral presentation, Japanese, 一般社団法人レーザー学会学術講演会第42回年次大会, Domestic conference
Jan. 2022

光位相を自在に制御することによる非線形光学現象のオンデマンドな操作
佐藤昂大; 大饗千彰; Liu Weiyong; 鈴木勝; 桂川眞幸
Oral presentation, Japanese, 一般社団法人レーザー学会学術講演会第42回年次大会, Domestic conference
Jan. 2022

CWレーザーの位相同期をベースとしたサブフェムト秒光シンセサイザー
戸村 暁廣; 大饗千彰; 美濃島薫; 桂川眞幸
Oral presentation, Japanese, 日本光学会年次学術講演会OPJ2021, Domestic conference
Oct. 2021

ナノ秒パルスレーザー光の高効率・高品質な波長変換
大久保直幸; 豊永大貴; 永野正統; 長谷川健司; 大饗千彰; 桂川眞幸
Oral presentation, Japanese, 日本光学会年次学術講演会OPJ2021, Domestic conference
Oct. 2021

Tailoring nonlinear optical phenomena by artificially manipulating the relevant optical phases - Toward high-resolution laser spectroscopy in the vacuum ultraviolet region -
C. Ohae; W. Liu; J. Zheng; M. Katsuragawa
Invited oral presentation, English, 29th International Laser Physics Workshop (LPHYS’22), Invited, International conference
Jul. 2021

任意な位相・振幅操作による光波形生成とその再現性
戸村 暁廣; 大饗 千彰; 美濃島 薫; 桂川 眞幸
Oral presentation, Japanese, 応用物理学会, Domestic conference
Mar. 2021

高効率・高品質な波長変換による深紫外光の生成
永野 正統; 大饗 千彰; 大久保 直幸; 豊永 大貴; 桂川 眞幸
Oral presentation, Japanese, レーザー学会, Domestic conference
Jan. 2021

高層大気中の中性原子およびイオンの同時計測を可能にする二波長発振注入同期チタンサファイアレーザーの開発
音瀬 めぐみ; 渡邊 哲人; 大久保 直幸; 佐藤 昂大; 豊永 大貴; 大饗 千彰; 桂川 眞幸; 江尻 省; 中村 卓司
Oral presentation, Japanese, レーザー学会, Domestic conference
Jan. 2021

光位相の自在な操作が拓く線形・非線形光学過程の新たな道
大饗 千彰; 桂川 眞幸
Invited oral presentation, Japanese, 超高速光エレクトロニクス研究会, Invited, Domestic conference
Dec. 2020

Ca^+とCaのLiDAR計測が可能な二波長注入同期ナノ秒パルスレーザーの開発
音瀬 めぐみ; 渡邊 哲人; 林 湧斗; 大饗 千彰; 桂川 眞幸; 江尻 省; 中村 卓司
Oral presentation, Japanese, 応用物理学会
Sep. 2020

Engineered generation of a specfic Stokes order in stimulated Raman scattering process
Weiyong Liu; Chiaki Ohae; Jian Zheng; Soma Tahara; Masaru Suzuki; Kaoru Minoshima; Masayuki Katsuragawa
Oral presentation, English, The 2020 CLEO, CLEO Technical Digest
May 2020

Designing nonlinear optical processes, -attractive rout to high resolution laser spectroscopy in the vacuum ultraviolet region-
C. Ohae; J. Zheng; M. Katsuragawa
Invited oral presentation, English, 50-th Winter Colloquium on the Physics of Quantum Electronics, PQE-2020 Snowbird, Invited, International conference
Jan. 2020

注入同期ナノ秒パルスチタンサファイアレーザーの出力スケーリング
音瀬 めぐみ; 大饗 千彰; 桂川 眞幸
Oral presentation, Japanese, レーザー学会, 宮城, Domestic conference
Jan. 2020

ナノ秒パルスレーザー光の高効率かつ高ビーム品質な波長変換
永野 正統; 長谷川 健司; 田原 壮馬; 大饗 千彰; 桂川 眞幸
Oral presentation, Japanese, レーザー学会, 宮城, Domestic conference
Jan. 2020

能動的に様々な形態に操作される非線形光学過程
大饗 千彰; 鄭 健; 劉 衛永; 田原 壮馬; 鈴木 勝; 美濃島 薫; 桂川 眞幸
Invited oral presentation, Japanese, レーザー学会, Invited, 宮城, Domestic conference
Jan. 2020

To be determined
C. Ohae; A. Tomura; K. Minoshima; M. Katsuragawa
Invited oral presentation, English, International Conference on Ultrafast Optical Science, Moscow, International conference
30 Sep. 2019

高効率かつ高ビーム品質なナノ秒パルス第二高調波発生
長谷川 健司; 永野 正統; 田原 壮馬; 大饗 千彰; 桂川 眞幸
Oral presentation, Japanese, 応用物理学会, 北海道
Sep. 2019

高ビーム品質・高効率・光パラメトリック増幅器の開発
田原 壮馬; 大饗 千彰; Liu Weiyong; 桂川 眞幸
Oral presentation, Japanese, 応用物理学会, 北海道
Sep. 2019

Arbitrary Manipulation of An Optical Waveform and Its Measurement
Akihiro Tomura; Chiaki Ohae; Kaoru Minoshima; Masayuki Katsuragawa
Oral presentation, English, URSI-JRSM 2019
Sep. 2019

Engineered generation of high order stimulated Raman scatterings
C. Ohae; W. Liu; J. Zheng; M. Suzuki; K. Minoshima; M. Katsuragawa
Oral presentation, English, Nonlinear Optics 2019, Hawaii, International conference
15 Jul. 2019

Tailored linear and nonlinear optical processes by implementing arbitrary manipulations of optical phase
C. Ohae; J. Zheng; W. Liu; M. Katsuragawa
Invited oral presentation, 28th International Laser Physics Workshop (LPHYS’19), Invited
Jul. 2019

Tailored generation of a highly-discrete Raman type comb
W. Liu; C. Ohae; J. Zheng; M. Suzuki; K. Minoshima; M. Katsuragawa
Poster presentation, English, OPTICS & PHOTONICS International Congress
Apr. 2019

高ビーム品質高効率光パラメトリック増幅器の開発
田原壮馬; 大饗千彰; Weiyong Liu; 桂川 眞幸
Oral presentation, Japanese, 応用物理学会, 東京, Domestic conference
Mar. 2019

LIDAR計測用二波長注入同期パルスレーザー
渡邊 哲人; 長谷川 健司; 隈元 清哉; 大饗 千彰; 桂川 眞幸
Oral presentation, Japanese, 応用物理学会, 東京, Domestic conference
Mar. 2019

高品質に単一横モードを維持したレーザーの高出力化
隈元清哉; 長谷川健司; 渡邊哲人; 大饗千彰; 古川裕介; 桂川 眞幸
Oral presentation, Japanese, レーザー学会, 東京, Domestic conference
Jan. 2019

人為位相制御による非線形光波長変換の自在な操作
大饗千彰; 鄭健; 劉衛永; Tregubov Dmitrii; 鈴木勝; 美濃島薫; 桂川眞幸
Oral presentation, Japanese, レーザー学会, 東京, Domestic conference
Jan. 2019

Novel route in nonlinear optical process
M. Katsuragawa; J. Zheng; C. Ohae
Invited oral presentation, English, Quantum and Nonlinear Optics, Malaysia, International conference
Feb. 2018

光周波数の分周を軸にした光の極限制御
大饗千彰; 吉井一倫; Gavara Trivikramarao; 美濃島薫; 桂川眞幸
Invited oral presentation, Japanese, レーザー学会, Invited, 日本, Domestic conference
Jan. 2018

Nonlinear Optical ProcessTailored by Arbitrarily Manipulating Relative Phases among Relevant Electromagnetic Fields
Weiyong Liu; Chiaki Ohae; Jian Zheng; Masaru Suzuki; Kaoru Minoshima; Masayuki Katsuragawa
Invited oral presentation, English, 10th international conference on photonics and applications, Invited, International conference
2018

Tailored nonlinear optical frequency conversion; Toward high resolution spectroscopy in the vacuum ultraviolet wavelength region
M. Katsuragawa; C. Ohae; J. Zheng; W. Liu; M. Suzuki; K. Minoshima
Invited oral presentation, English, the International Conference on Ultrafast Optical Science (UltraFastLight), Invited, International conference
2018

Tailored optics with a highly-discrete optical frequency comb; toward high resolution nonlinear spectroscopy in the vacuum ultraviolet wavelength region
C. Ohae; J. Zheng; K. Minoshima; M. Katsuragawa
Invited oral presentation, English, the VIII International Symposium on Modern Problems of Laser Physics (MPLP-2018), Invited, International conference
2018

Tailor made nonlinear optical frequency mixing and its application to optical devices
M. Katsuragawa; J. Zheng; C. Ohae
Invited oral presentation, English, 48-th Winter Colloquium on the Physics of Quantum Electronics (PQE-2018), Invited, International conference
2018

Arbitrary optical waveform generation at 125THz repetition rate
A. Tomura; C. Ohae; M. Katsuragawa
Oral presentation, English, The fifth MIPT-LPI-UEC Joint Workshop on Atomic, Molecular, and Optical Physics, International conference
2018

Generation of ultrashort pulses by arbitrarily manipulating amplitudes and phases
D. Tregubov; C. Zhang; W. Liu; C. Ohae; M. Suzuki; K. Minoshima; M. Katsuragawa
Oral presentation, English, the International Conference on Ultrafast Optical Science (UltraFastLight), International conference
2018

Tailor-made Raman-resonant four-wave-mixing processes and their applications to optical devices
C. Ohae; J. Zheng; M. Suzuki; K. Minoshima; M. Katsuragawa
Oral presentation, English, The 2018 CLEO, CLEO Technical Digest, International conference
2018

Generation of 1.4-fs ultrafast single-cycle pulses with a repetition rate exceeding 100 THz by arbitrarily manipulating amplitude and phase
C. Zhang; K. Yoshii; D. Tregubov; C. Ohae; M. Suzuki; K. Minoshima; M. Katsuragawa
Oral presentation, English, The 2018 CLEO, CLEO Technical Digest, International conference
2018

Tailored nonlinear optical frequency mixing and its application to optical devices
C. Ohae; J. Zheng; K. Minoshima; M. Katsuragawa
Poster presentation, English, Anacapri 2018, International conference
2018

Continuous Generation of Ultrafast Arbitrary Optical Waveform with a Repetition Rate Exceeding 100 THz
C. Ohae; T. Gavara; K. Minoshima; M. Katsuragawa
Poster presentation, English, Conference on Lasers and Electro-Optics 2018, International conference
2018

任意連続光波形の生成とその応用
A. Tomura; C. Ohae; T. Gavara; K. Minoshima; M. Katsuragawa
Oral presentation, Japanese, 応用物理学会, Domestic conference
2018

Simple Technology to Freely Manipulating Nonlinear Frequency Conversion Processes
Weiyong Liu; Chiaki Ohae; Jian Zheng; Masaru Suzuki; Kaoru Minoshima; Masayuki Katsuragawa
Oral presentation, English, 応用物理学会, Domestic conference
2018

単一縦横モード発振を維持したレーザーの高出力化
隈本清哉; 大饗千彰; 古川祐介; 桂川眞幸
Oral presentation, Japanese, 応用物理学会, Domestic conference
2018

Arbitrary optical waveform at 125THz repetition rate and its application to ultrafast phenomena
A. Tomura; C. Ohae; T. Gavara; K. Minoshima; M. Katsuragawa
Oral presentation, English, International Conference on Ultrafast Optical Science, International conference
2018

Development of Injection-Locked Ti: Sapphire Pulse Laser as LiDAR Source
Y. Furukawa; C. Ohae; S. Kumamoto; H. Yoneda; M. Katsuragawa; M. K. Ejiri; T. Nishiyama; T. Nakamura
Oral presentation, English, The eighth Symposium on Polar Science, Tokyo, Japan, International conference
Nov. 2017

125THz超高繰り返し超短パルス光の発生
大饗千彰; Gavara Trivikramarao; 中川賢一; 美濃島薫; 桂川眞幸
Oral presentation, Japanese, 応用物理学会, 日本, Domestic conference
Sep. 2017

Tailored optics with a highly-discrete optical frequency comb
M. Katsuragawa; C. Ohae; J. Zheng; C. Zhang; T. Gavara; M. Suzuki; K. Minoshima
Oral presentation, English, 24th Congress of the International Commission for Optics, Hawaii, USA, International conference
Aug. 2017

Simple optical technology to arbitrarily manipulate amplitude and phase and its application to generation of ultrafast pulses above 100 THz repetition rate
C. Zhang; D. Tregubov; K. Yoshii; C. Ohae; M. Suzuki; K. Minoshima; M. Katsuragawa
Oral presentation, English, 24th Congress of the International Commission for Optics, Japan, International conference
Aug. 2017

Tailored nonlinear optical process by manipulating the relative phases among the relevant electromagnetic fields
Chiaki Ohae; Jian Zheng; Kimihito Itoh; Masaru Suzuki; Kaoru Minoshima; Masayuki Katsuragawa
Oral presentation, English, Nonlinear Optics 2017, Hawaii, USA, International conference
Jul. 2017

Development of injection locked laser and its application to continuous wave based optical waveform generation
T. Gavara; C. Ohae; K. Nakagawa; K. Minoshima; M. Katsuragawa
Invited oral presentation, English, International workshop on theory for attosecond quantum dynamics (IWTAQD) 17, Invited, Japan, International conference
Jul. 2017

位相同期高調波光系列の生成とその超高速光波整形への利用
大饗千彰; N. S. Suhaimi; T. Gavara; 中川賢一; 洪鋒雷; 美濃島薫; 桂川眞幸
Oral presentation, Japanese, レーザー学会, 日本, Domestic conference
Jan. 2017

none
M. Katsuragawa; J. Zheng; C. Ohae; K. Minoshima
Invited oral presentation, English, GINZBURG CENTENNIAL CONFERENCE ON PHYSICS, Invited, International conference
2017

Designability of optical processes composed of discrete spectrum
M. Katsuragawa; J. Zheng; C. Ohae; C. Zhang; M. Suzuki
Invited oral presentation, English, 47-th Winter Colloquium on the Physics of Quantum Electronics (PQE-2017), Invited, International conference
2017

Tailored nonlinear optics; Toward pioneering high resolution spectroscopy in the vacuum ultraviolet region
M. Katsuragawa; C. Ohae; J. Zheng; K. Ito; M. Suzuki; K. Minoshima
Oral presentation, English, The fourth MIPT-LPI-UEC Joint Workshop on Atomic, Molecular, and Optical Physics, International conference
2017

Injection-Locked Tunable Continuous-Wave Laser and Its Application to Generation of Ultrafast Pulses Above 100-THz Repetition Rate
T. Gavara; C. Ohae; K. Nakagawa; K. Minoshima; M. Katsuragawa
Invited oral presentation, English, 26th annual International Laser Physics Workshop, Moscow, Russia, International conference
2017

Generation of five phase-locked harmonics in the continuous wave regime and its potential application to arbitrary optical waveform synthesis
N. S. Suhaimi; C. Ohae; T. Gavara; K. Nakagawa; F. -L. Hong; M. Katsuragawa
Oral presentation, English, Third International Conference on Applications of Optics and Photonics, Faro, Portugal
2017

Ultrafast Pulse Train at a 125-THz Repetition Rate in the CW Regime
C. Ohae; N. S. Suhaimi; T. Gavara; K. Nakagawa; F. -L. Hong; K. Minoshima; M. Katsuragawa
Oral presentation, English, Nonlinear Optics 2017, Hawaii, USA
2017

Ultrafast Pulse Train with a repetition rate above 100 THz in the continuous-wave regime
C. Ohae; N. S. Suhaimi; T. Gavara; K. Nakagawa; F. -L. Hong; K. Minoshima; M. Katsuragawa
Oral presentation, English, 24th Congress of the International Commission for Optics, Tokyo, Japan
2017

Generation and application of five phase-locked harmonics in the continuous wave regime
Chiaki Ohae; Nurul Sheeda Suhaimi; Trivikramarao Gavara; Ken'ichi Nakagawa; Feng-Lei Hong; Kaoru Minoshima; Masayuki Katsuragawa
Poster presentation, English, Conference on Lasers and Electro-Optics 2016, USA, International conference
Jun. 2016

光周波数分周と 位相同期高調波光の生成
大饗千彰; Nurul Sheeda Suhaimi; Trivikramarao Gavara; 中川賢一; 洪鋒雷; 美濃島薫; 桂川眞幸
Oral presentation, Japanese, 日本物理学会, 日本, Domestic conference
Mar. 2016

SCSS励起由来のヘリウム原子多遷移間における超蛍光・超放射
J R Harries; 大饗千彰; 岩山洋士; 繁政英治; 久間晋; 中嶋享; 富樫格; 宮本祐樹; 笹尾登
Oral presentation, Japanese, 放射光学会, 日本, Domestic conference
2016

Multiple-wavelength injection-locked continuous-wave titanium sapphire laser
T. Gavara; T. Ohashi; Y. Sasaki; T. Kawashima; H. Hamano; R. Yoshizaki; Y. Fujimura; K. Yoshii; C. Ohae; dM. Katsuragawa
Oral presentation, English, 日本物理学会, 日本, Domestic conference
2016

Attractive natures in a set of a highly discrete coherent spectrum
J. Zheng; C. Ohae; M. Katsuragawa
Invited oral presentation, English, The 9th INTERNATIONAL CONFERENCE ON PHOTONICS & APPLICATIONS (ICPA-9), Invited, International conference
2016

Attractive natures in linear and nonlinear optical processes composed of a discrete spectrum
M. Katsuragawa; J. Zheng; C. Ohae; K. Itoh; K. Yoshii; M. Suzuki
Invited oral presentation, English, 45-th Winter Colloquium on the Physics of Quantum Electronics (PQE-2016), Invited, International conference
2016

EUV-FEL励起1s4pへリム原子集団における超蛍光・超放射の実験と数値計算
James R Harries; 岩山 洋士; 久間 晋; 宮本 祐樹; 永園 充; 大饗 千彰; 富樫 格; 中嶋 享; 繁政 英治; 笹尾 登
Oral presentation, Japanese, 日本物理学会, Domestic conference
2016

EUV-FEL励起ヘリウム原子集団における多準位間超放射(I)実験
中嶋 享; James R. HARRIES; 岩山 洋士; 久間 晋; 宮本 祐樹; 永園 充; 大饗 千彰; 富樫 格; 繁政 英治; 笹尾 登
Oral presentation, Japanese, 日本物理学会, Domestic conference
2016

Generation of phase-locked harmonics and its application to ultrafast technology
C. Ohae; N. S. Suhaimi; T. Gavara; K. Nakagawa; F. -L. Hong; K. Minoshima; M. Katsuragawa
Invited oral presentation, English, Frontiers of Nonlinear Physics, Invited, Russia, International conference
2016

Development of advanced laser technology for space and upper atmospheric sciences
M. Katsuragawa; Y. Furukawa; R. Tani; C. Ohae; H. Yoneda; M. Ejiri; T. Nishiyama; T. Nakamura
Oral presentation, English, The Seventh Symposium on Polar Science, Tokyo, Japan, International conference
2016

Freely designable nonlinear optical frequency conversion
C. Ohae; K. Ito; Z. Jian; K. Yoshii; M. Katsuragawa
Oral presentation, English, UEC MIPT Joint WorkShop, Russia, International conference
22 Oct. 2015

Multiple-wavelength superfluorescence in helium following FEL excitation: ultrafast experiments and simulations
J R Harries; C Ohae; H Iwayama; K Kawaguchi; S Kuma; Y Miyamoto; M Nagasono; K Nakajima; I Nakano; E Shigemasa; N Sasao; T Togashi; S Uetake; T Wakabayashi; A Yoshimi; K Yoshimura; M Yoshimura
Oral presentation, English, 原子衝突学会, 日本, Domestic conference
Sep. 2015

EUV-FEL励起ヘリウム原子集団における多準位間超放射 （II） 解析
大饗千彰; James R. Harries; 岩山洋士; 久間晋; 宮本祐樹; 永園充; 中嶋亨; 繁政英治; 若林智成; 笹尾登
Oral presentation, Japanese, 日本物理学会, 日本, Domestic conference
Mar. 2015

光の周波数分割
大饗千彰
Poster presentation, Japanese, 国際光年記念シンポジウム, 日本, Domestic conference
2015

Generation of Broad Phase-Locked Harmonics
C. Ohae; N. S. Suhaimi; T. Gavara; K. Nakagawa; F. -L. Hong; M. Katsuragawa
Invited oral presentation, English, 24th annual International Laser Physics Workshop (LPHYS'15), Invited, International conference
2015

Production of Ba Metastable State via Superradiance toward Observation of Paired Superradiance
C. Ohae; A. Fukumi; S. Kuma; Y. Miyamoto; K. Nakajima; I. Nakano; H. Nanjo; N. Sasao; S. Uetake; T. Wakabayashi; A. Yoshimi; K. Yoshimura; M. Yoshimura
Poster presentation, English, Fundamental Physics Using Atoms, Japan, International conference
May 2014

水素分子振動準位間のコヒーレント2光子放出II
原 秀明; 桂川 眞幸; 久間 晋; 増田 孝彦; 宮本 祐樹; 中野 逸夫; 大饗 千彰; 笹尾 登; 田中 実; 堤 康輔; 植竹 智; 吉見 彰洋; 吉村 浩司; 吉村 太彦
Oral presentation, Japanese, 日本物理学会, Domestic conference
2014

コヒーレント二光子放出観測によるマクロコヒーレント増幅機構の実証
植竹 智; 原 秀明; 桂川 眞幸; 久間 晋; 増田 孝彦; 宮本 祐樹; 中野 逸夫; 大饗 千彰; 笹尾 登; 田中 実; 堤 康輔; 吉見 彰洋; 吉村 浩司; 吉村 太彦
Oral presentation, Japanese, 日本物理学会, Domestic conference
2014

水素分子振動準位間のコヒーレント2光子放出I
宮本 祐樹; 原 秀明; 桂川 眞幸; 久間 晋; 増田 孝彦; 中野 逸夫; 大饗 千彰; 笹尾 登; 田中 実; 堤 康輔; 植竹 智; 吉見 彰洋; 吉村 浩司; 吉村 太彦
Oral presentation, Japanese, 日本物理学会, Domestic conference
2014

バリウム原子準安定状態を用いた対超放射実験III
大饗千彰; 植竹智; 久間晋; 笹尾登; 高橋弘紀; 田中実; 中嶋享; 中島優夢; 中野逸夫; 南條創; 福見敦; 吉見彰洋; 吉村太彦
Oral presentation, Japanese, 日本物理学会, 日本, Domestic conference
Mar. 2013

マクロコヒーレンス生成に向けたXe準安定状態に関する分光実験
吉見 彰洋; 笹尾 登; 植竹 智; 久間 晋; 中嶋 享; 大饗 千彰; 宮本 祐樹; 川口 建太郎; 堤 康輔; 唐 健; 福見 敦; 田中 実; 中野 逸夫; 若林 知成; 吉村 浩司; 吉村 太彦
Oral presentation, Japanese, 日本物理学会, Domestic conference
2013

極端紫外自由電子レーザー光による励起He原子からの分岐超放射の同時測定
中嶋 享; 福見 敦; 岩山 洋士; 川口 建太郎; 久間 晋; 宮本 祐樹; 中野 逸夫; 中島 優夢; 南條 創; 大饗 千彰; 笹尾 登; 繁政 英治; 高橋 弘紀; 田中 実; 唐 健; 植竹 智; 若林 知成; 吉見 彰洋; 吉村 太彦
Oral presentation, Japanese, 日本物理学会, Domestic conference
2013

Coherence production and measurement of atomic barium toward paired superradiance
C. Ohae; A. Fukumi; S. Kuma; K. Nakajima; I. Nakano; Y. Nakashima; H. Nanjo; N. Sasao; H. Takahashi; M. Tanaka; S. Uetake; A. Yoshimi; M. Yoshimura
Poster presentation, English, Fundamental Physics Using Atoms, Japan, International conference
Sep. 2012

バリウム原子準安定状態を用いた対超放射実験II
大饗千彰; 植竹智; 久間晋; 笹尾登; 高橋弘紀; 田中実; 中嶋享; 中島優夢; 中野逸夫; 南條創; 福見敦; 山口琢也; 湯浅一生; 吉見彰洋; 吉村太彦
Oral presentation, Japanese, 日本物理学会, 日本, Domestic conference
Sep. 2012

バリウム原子準安定状態を用いた対超放射探索実験
大饗千彰; 植竹智; 久間晋; 笹尾登; 高橋弘紀; 田中実; 中嶋享; 中島優夢; 中野逸夫; 南條創; 福見敦; 山口琢也; 湯浅一生; 吉見彰洋; 吉村太彦
Oral presentation, Japanese, 日本物理学会, 日本, Domestic conference
Mar. 2012

窒素内包フラーレンN@C_<60>の真空紫外分光
山口 琢也; 植竹 智; 大饗 千彰; 久間 晋; 笹尾 登; 田中 実; 中嶋 享; 中野 逸夫; 南條 創; 福見 敦; 湯浅 一生; 吉見 彰洋; 吉村 太彦; 若林 知成
Oral presentation, Japanese, 日本物理学会, Domestic conference
2012

固体ネオンマトリックス中におけるBi原子およびYb原子の発光スペクトル
若林 知成; 富岡 万貴子; 山口 琢也; 久間 晋; 宮本 祐樹; 中嶋 享; 植竹 智; 大饗 千彰; 川口 建太郎; 笹尾 登; 田中 実; 唐 健; 中野 逸夫; 南條 創; 福見 敦; 百瀬 孝昌; 吉見 彰洋; 吉村 太彦
Oral presentation, Japanese, 日本物理学会, Domestic conference
2012

固体パラ水素を用いた二光子対超放射実験(II)
久間 晋; 宮本 祐樹; 中嶋 享; 植竹 智; 大饗 千彰; 川口 建太郎; 笹尾 登; 田中 実; 唐 健; 中野 逸夫; 南條 創; 福見 敦; 百瀬 孝昌; 山口 琢也; 湯浅 一生; 吉見 彰洋; 吉村 太彦; 若林 知成
Oral presentation, Japanese, 日本物理学会, Domestic conference
2012

原子の分岐遷移における競合超放射の同時測定
中嶋 享; 福見 敦; 久間 晋; 中野 逸夫; 中島 優夢; 南條 創; 大饗 千彰; 笹尾 登; 高橋 弘紀; 植竹 智; 山口 琢也; 吉見 彰洋; 吉村 太彦; 湯浅 一生
Oral presentation, Japanese, 日本物理学会, Domestic conference
2012

Search for Paired Superradiance Using Metastable State of Atomic Barium
C. Ohae; A. Fukumi; S. Kuma; K. Nakajima; I. Nakano; H. Nanjo; N. Sasao; M. Tanaka; S. Uetake; T. Yamaguchi; M. Yoshimura; K. Yuasa
Poster presentation, English, Fundamental Physics Using Atoms, Japan, International conference
Oct. 2011

マクロコヒーランス増幅機構を用いたニュートリノ質量分光（XI）－ Ba 対超放射探索実験－
大饗千彰; 植竹智; 久間晋; 笹尾登; 田中実; 谷口敬; 中嶋享; 中野逸夫; 南條創; 福見敦; 山口琢也; 湯浅一生; 吉村太彦
Oral presentation, Japanese, 日本物理学会, 日本, Domestic conference
Sep. 2011

マクロコヒーランス増幅機構を用いたニュートリノ質量分光（X）－対超放射の探索－
大饗千彰; 久間晋; 笹尾登; 佐藤晴一; 谷口敬; 中嶋享; 中野逸夫; 南條創; 福見敦; 山口琢也; 湯浅一生; 吉村太彦
Oral presentation, Japanese, 日本物理学会, 日本, Domestic conference
Mar. 2011

Study toward Paired Superradiance using Atomic Barium
C. Ohae; A. Fukumi; S. Kuma; K. Nakajima; I. Nakano; H. Nanjo; N. Sasao; S. Sato; T. Taniguchi; T. Yamaguchi; M. Yoshimura; K. Yuasa
Poster presentation, English, Fundamental Physics Using Atoms, Japan, International conference
Aug. 2010

マクロコヒーランス増幅機構を用いたニュートリノ質量分光（IX）-超放射を用いたバリウム準安定状態の生成実験-
大饗千彰; 内音坊遼平; 笹尾登; 佐藤晴一; 谷口敬; 中嶋享; 中野逸夫; 南條創; 福見敦; 山口琢也; 吉村太彦
Oral presentation, Japanese, 日本物理学会, 日本, Domestic conference
Mar. 2010

窒素原子内包フラーレンN@C_の高純度化と分光
山口琢也; 内音坊僚平; 大饗千彰; 岡林裕介; 笹尾登; 佐藤晴一; 谷口敬; 中嶋亨; 中野逸夫; 南條創; 福見敦; 吉川愛理; 吉村太彦; 若林知成
Oral presentation, Japanese, 日本物理学会, Domestic conference
2010

固体パラ水素結晶に内包されたXe原子の電子励起状態の分光測定
中嶋 享; 福見 敦; 川口 建太郎; 久間 晋; 宮本 祐樹; 百瀬 孝昌; 中野 逸夫; 南條 創; 大饗 千彰; 笹尾 登; 佐藤 晴一; 谷口 敬; 唐 健; 若林 知成; 山口 琢也; 吉村 太彦; 湯浅 一生
Oral presentation, Japanese, 日本物理学会, Domestic conference
2010

Rb原子を用いた超放射の同時分岐測定
佐藤 晴一; 福見 敦; 久間 晋; 中嶋 享; 中野 逸夫; 南條 創; 大饗 千彰; 笹尾 登; 谷口 敬; 山口 琢也; 吉村 太彦; 湯浅 一生
Oral presentation, Japanese, 日本物理学会, Domestic conference
2010

マクロコヒーランス増幅機構を用いたニュートリノ質量分光(VII)－ラマン超放射を用いたバリウム準安定状態の生成－
大饗千彰; 内音坊遼平; 佐藤晴一; 中嶋享; 中野逸夫; 福見敦; 吉村太彦; 笹尾登; 南條創
Oral presentation, Japanese, 日本物理学会, 日本, Domestic conference
Sep. 2009

マクロコヒーランス増幅機構を用いたニュートリノ質量分光(IV) －気体標的からの超放射研究－
大饗千彰; 内音坊遼平; 佐藤晴一; 中嶋享; 中野逸夫; 福見敦; 吉村太彦; 笹尾登; 南條創
Oral presentation, Japanese, 日本物理学会, 日本, Domestic conference
Mar. 2009

原子とレーザーによる素粒子・宇宙の基礎物理の研究
大饗千彰; 笹尾登; 福見敦; 中嶋享; 中野逸夫; 南條創; 吉村太彦
Oral presentation, Japanese, レーザー研シンポジウム, 日本, Domestic conference
2009

マクロコヒーランス増幅機構を用いたニュートリノ質量分光(VIII) : 低温マトリックスに単離・貯蔵した励起原子の分光測定
中嶋 享; 福見 敦; 中野 逸夫; 南條 創; 大饗 千彰; 笹尾 登; 佐藤 晴一; 内音坊 僚平; 若林 知成; 山口 琢也; 吉村 太彦
Oral presentation, Japanese, 日本物理学会, Domestic conference
2009

マクロコヒーランス増幅機構を用いたニュートリノ質量分光(VI) : Rb原子カスケード超放射の測定
佐藤 晴一; 福見 敦; 中嶋 享; 中野 逸夫; 南條 創; 大饗 千彰; 笹尾 登; 内音坊 僚平; 山口 琢也; 吉村 太彦
Oral presentation, Japanese, 日本物理学会, Domestic conference
2009

マクロコヒーランス増幅機構を用いたニュートリノ質量分光(V)―固体マトリックス標的の量子干渉性の研究―
中野逸夫; 内音坊僚平; 大饗千彰; 佐藤晴一; 川口建太郎; 久保園芳博; 唐健; 中嶋享; 福見敦; 吉村太彦; 笹尾登; 南條創
Oral presentation, Japanese, 日本物理学会, Domestic conference
2009

原子を利用したニュートリノ対生成の基礎研究III : 赤外・マイクロ波分光の利用
中嶋 享; 福見 敦; 中野 逸夫; 吉村 太彦; 大饗 千彰; 岡林 祐介; 幸田 康成; 佐藤 晴一; 高橋 徹; 別宮 智志; 若林 智章; 笹尾 登; 南條 創
Oral presentation, Japanese, 日本物理学会, Domestic conference
2008

マクロコヒーランス増幅機構を用いたニュートリノ質量分光(III)－コヒーラント標的の基礎研究－
福見敦; 内音坊僚平; 大饗千彰; 川口建太郎; 久保園芳博; 幸田康成; 笹尾登; 佐藤晴一; 唐健; 中嶋享; 中野逸夫; 南條創; 百瀬孝昌; 吉村太彦
Oral presentation, Japanese, 日本物理学会, Domestic conference
2008

マクロコヒーランス増幅機構を用いたニュートリノ質量分光(II)－気体セルを用いた超放射の基礎研究－
南條創; 内音坊僚平; 大饗千彰; 幸田康成; 笹尾登; 佐藤晴一; 中嶋享; 中野逸夫; 福見敦; 吉村太彦
Oral presentation, Japanese, 日本物理学会, Domestic conference
2008

マクロコヒーランス増幅機構を用いたニュートリノ質量分光(I) －二光子および一光子+ニュートリノ対放射の理論－
笹尾登; 大饗千彰; 中嶋亨; 中野逸夫; 南條創; 福見敦; 吉村太彦
Oral presentation, Japanese, 日本物理学会, Domestic conference
2008

原子を利用したニュートリノ対生成の基礎研究
大饗 千彰; 岡林 祐介; 幸田 康成; 佐藤 晴一; 高橋 徹; 別宮 智志; 若林 智章; 中嶋 享; 福見 敦; 中野 逸夫; 吉村 太彦; 笹尾 登; 南條 創
Oral presentation, Japanese, 日本物理学会, Domestic conference
2007

理工学基礎実験
The University of Electro-Communications

理工学基礎実験
電気通信大学

Optical Society of America

レーザー学会

日本物理学会

応用物理学会

波長可変 Lyman α レーザー技術の確立と水素原子のレーザー冷却の実現
日本学術振興会, 科学研究費助成事業 基盤研究(B), 電気通信大学, Principal investigator
Apr. 2023 - Mar. 2027

非線形光学過程の自在な操作技術を基盤とした 真空紫外域における原子・分子・光科学の創出
Chiaki Ohae
国立研究開発法人科学技術振興機構, 研究助成
01 Oct. 2021 - 31 Mar. 2025

位相の自在な操作を組込むことによる非線形光学過程の新しい可能性の開拓
大饗 千彰
日本学術振興会, 科学研究費助成事業 基盤研究(B), 電気通信大学, 基盤研究(B), Principal investigator, 非線形光学過程はその過程に関係する光の位相関係に強く依存する。位相整合においては光の伝搬に伴って各位置における光生成がコヒーレントに積算されることで巨視的な光生成が達成される。このような伝搬に伴う積算効果とは別に、光の位相関係を任意に操作することで、それぞれの位置における非線形光学過程自身の進行方向を自在に操作することができる。本研究の目的は、このような自在な操作によって拓かれる非線形光学過程の新たな可能性を追求することにある。 本研究ではパラ水素分子による高次の４光波混合過程を自在に操作することで、未踏のレーザー技術である、真空紫外100-200 nm（1～8次光）全域で波長可変な単一周波数レーザーを実現する。 真空紫外域における100-200 nm全域で実用的な光強度で単一周波数レーザーを得るには、100％に近い効率で各次数の光を発生させるという非常に特徴的な非線形光学過程の操作が要求される。これまでの原理実証実験における実験結果とシミュレーション結果の比較から、100%に近い効率で選択的な光発生が可能な条件を探索した。その結果、ポンプレーザーの大強度化による光発生の効率の向上、さらに高い自由度（操作位置および位相操作範囲）で光位相関係の操作することで、100%に近い効率実現可能である予想された。上記の結果を踏まえて、今年度（2021年度）は上記の要求を満たす大強度ポンプレーザーを開発した。, 20H01837
Apr. 2020 - Mar. 2023

人工位相制御による非線形光波長変換の自在操作と真空紫外レーザー技術への展開
大饗千彰
公益財団法人 光科学技術研究振興財団, 研究助成
01 Jan. 2019 - 31 Dec. 2021

人工位相制御による非線形光波長変換の自在操作と真空紫外レーザー技術への展開
大饗千彰
公益財団法人 光科学技術研究振興財団, 研究助成, Principal investigator
01 Jan. 2019 - 31 Dec. 2020

光周波数の分周を基盤とする極限光波制御
大饗千彰
Principal investigator
01 Apr. 2018 - 31 Mar. 2020

マクロコヒーラント増幅機構を利用したバリウム準安定励起状態からの2光子放出検出
大饗 千彰
日本学術振興会, 科学研究費助成事業, 岡山大学, 特別研究員奨励費, 励起原子からの1光子放射による脱励起過程において、その放射強度が原子数の2乗に比例して強くなるという超放射が知られている。この現象は標的原子全体にコヒーレンスが発達することによる一種の協同現象である。超放射では標的原子がコヒーレントとなる領域(コヒーレント体積)は波長程度に制限される。これに対し、1原子から多粒子が放出される過程ではこの体積が波長に制限されず莫大な増幅が得られるという、マクロコヒーレント増幅機構が提唱されている。その原理を最も単純な例である2光子放出の場合を2光子対超放射と呼び、対超放射を世界で初めて発見することで、マクロコヒーレント増幅機構を検証することが本研究の目標である。これが達成されれば、従来大型の検出器・大量のターゲットによって行われてきた素粒子物理学の実験手法とは対照的な、レーザーによって生成されたコヒーレンスを用いた実験室規模の実験によってニュートリノ対生成のような長寿命過程の観測が可能となり新たなフロンティアの開拓につながる。 本年度の研究では前年度までに生成した標的のコヒーレンスをコヒーレント反ストークスラマン散乱(CARS)によって測定を行った。その結果、対超放射観測に必要なコヒーレンスを生成できていないことが分かった。この原因を突き止めるために、シミュレーションによってコヒーレンスを評価した。その結果、励起に使用しているレーザーのラビ振動数が標的原子集団内で大きく変化するために、原子ごとにコヒーレンスの成長が異なり、デコヒーレンスが起こっていることが判明した。, 11J01653
2011 - 2012

レーザー共振器、及びレーザー共振器の設計方法
Patent right, 桂川眞幸, 大饗千彰, 特願2016-223000号, Date applied: 16 Nov. 2016, 国立大学法人電気通信大学

電気通信大学 研究活性化支援システム 若手研究者支援 採択
2016 - 2016