Apr. 2026 - Present
The University of Electro-Communications, Institute for Laser Science, Research assistant professor

Mar. 2024 - Mar. 2026
Hokkaido University, Institute of Low Temperature Science Frontier Ice and Snow Science Section, Japan

Apr. 2018 - Mar. 2026
RIKEN, Atomic, Molecular & Optical Physics Laboratory, Japan

Apr. 2019 - Mar. 2024
Tokyo Metropolitan University, 理学研究科, 物理学専攻, 首都大学東京, Japan

Apr. 2015 - Mar. 2019
Kitasato University, School of Science, 化学科, Japan

Time-resolved observation of superfluorescence at a wavelength of 164 nm from helium ions
James R Harries; Yoshiro Azuma; Arisa Iguchi; Ichiro Inoue; Hiroshi Iwayama; Shigeki Owada; Eiji Shigemasa; Tadashi Togashi; Susumu Kuma
Journal of Physics B: Atomic, Molecular and Optical Physics, 27 Mar. 2026
Scientific journal

Methanol Formation via the Radical–Radical Reaction of OH and CH3 Radicals Undergoing Transient Diffusion on Ice at 10 to 60 K
Arisa Iguchi; Hiroshi Hidaka; Atsuki Ishibashi; Masashi Tsuge; Yasuhiro Oba; Naoki Watanabe
The Astrophysical Journal, 20 Feb. 2026
Scientific journal

Infrared Spectroscopy of (NH3–H2O)+ Radical Cations in Helium Nanodroplets
Tom C. Bernaards; Amandeep Singh; Zane Golpariani; Arisa Iguchi; Prakashraj Nehrudass; Susumu Kuma; Andrey F. Vilesov
The Journal of Physical Chemistry Letters, American Chemical Society (ACS), 09 Jan. 2026
Scientific journal

Methylamine Formation on Amorphous Solid Water via the Diffusive CH3 + NH2 Reaction as Investigated by the Cs+ Ion Pickup Method
Arisa Iguchi; Masashi Tsuge; Hiroshi Hidaka; Yasuhiro Oba; Naoki Watanabe
ACS Earth and Space Chemistry, 18 Dec. 2025
Scientific journal

Infrared Spectroscopy of Radical-Cation Clusters (NH3)n=4–6+
Amandeep Singh; Arisa Iguchi; Zane Golpariani; Tom C. Bernaards; Asuka Fujii; Hajime Tanuma; Toshiyuki Azuma; Kenta Mizuse; Susumu Kuma; Andrey F. Vilesov
The Journal of Physical Chemistry A, 23 Oct. 2025
Scientific journal, English

Infrared Spectroscopy of Radical Cation Clusters (NH3)2+ and (NH3)3+
Amandeep Singh; Arisa Iguchi; Tom C. Bernaards; Zane Golpariani; Kenta Mizuse; Asuka Fujii; Hajime Tanuma; Toshiyuki Azuma; Susumu Kuma; Andrey Vilesov
The Journal of Physical Chemistry A, 26 Feb. 2025
Scientific journal, English

Size distribution of helium droplets in the condensation regime of a pulsed beam
A. Iguchi; A. Hirota; S. Menk; T. Yamaguchi; H. Tanuma; J. R. Harries; S. Kuma; T. Azuma
Low Temperature Physics, 01 Sep. 2024
Scientific journal

Vibrational spectroscopy of aniline cations and their H-loss cations in helium droplets
Arisa Iguchi; Amandeep Singh; Susumu Kuma; Hajime Tanuma; Toshiyuki Azuma
Journal of Molecular Spectroscopy, Mar. 2024
Scientific journal

Isolation and Infrared Spectroscopic Characterization of Hemibonded Water Dimer Cation in Superfluid Helium Nanodroplets
Arisa Iguchi; Amandeep Singh; Stefan Bergmeister; Andrew Abishek Azhagesan; Kenta Mizuse; Asuka Fujii; Hajime Tanuma; Toshiyuki Azuma; Paul Scheier; Susumu Kuma; Andrey Vilesov
The Journal of Physical Chemistry Letters, American Chemical Society ({ACS}), 14, 36, 8199-8204, 06 Sep. 2023
Scientific journal, English

超流動ヘリウム液滴を用いた低温分子イオン分光
井口 有紗; 久間 晋
Lead, 10 Jul. 2024, 原子衝突学会誌しょうとつ, 21, 2, Japanese, Peer-reviwed, Invited, Introduction scientific journal