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Photostimulated desorption of OH radicals from amorphous solid water: Evidence for the interaction of visible light with an OH-ice complex

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/80168

Title: Photostimulated desorption of OH radicals from amorphous solid water: Evidence for the interaction of visible light with an OH-ice complex
Authors: Miyazaki, A. Browse this author
Watanabe, N. Browse this author →KAKEN DB
Sameera, W. M. C. Browse this author →KAKEN DB
Nakai, Y. Browse this author
Tsuge, M. Browse this author
Hama, T. Browse this author
Hidaka, H. Browse this author
Kouchi, A. Browse this author →KAKEN DB
Issue Date: 20-Nov-2020
Publisher: American Physical Society (APS)
Journal Title: Physical Review A
Volume: 102
Issue: 5
Start Page: 052822
Publisher DOI: 10.1103/PhysRevA.102.052822
Abstract: Using a combination of photostimulated desorption and resonance-enhanced multiphoton ionization techniques, OH radicals photodesorbed from amorphous solid water at low temperatures are detected. It was found that the OH photodesorption can be caused by a one-photon process on the surface even at 532 nm, where both isolated OH and H2O are transparent. Quantum chemical calculations reveal that the electronic excitation of OH dramatically changes depending on the adsorption sites and the number of surrounding H2O molecules, and that OH having three hydrogen bonds with neighboring H2O molecules can absorb photons of around 532 nm, which supports the experimental findings.
Rights: ©2020 American Physical Society
Type: article
URI: http://hdl.handle.net/2115/80168
Appears in Collections:低温科学研究所 (Institute of Low Temperature Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 渡部 直樹

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