Optically-stimulated desorption of «hot» excimers from pre-irradiated Ar solids

Optically-stimulated desorption of «hot» excimers from pre-irradiated Ar solids

Gumenchuk, G.B. ; Khyzhniy, I.V. ; Ponomaryov, A.N. ; Bludov, M.À. ; Uyutnov, S.À. ; Belov, A.G. ; Savchenko, E.V. ; Bondybey, V.E.

Тема: Кpаткие сообщения

Інший ID: PACS: 79.20.La;72.20.Jv;79.75.+g

URI: http://dspace.nbuv.gov.ua/handle/123456789/116856

Посилання: Optically-stimulated desorption of «hot» excimers from pre-irradiated Ar solids / G.B. Gumenchuk, I.V. Khyzhniy, A.N. Ponomaryov, M.À. Bludov, S.À. Uyutnov, A.G. Belov, E.V. Savchenko, V.E. Bondybey // Физика низких температур. — 2008. — Т. 34, № 3. — С. 309–313. — Бібліогр.: 23 назв. — англ.

Підтримка: The authors thank Professors P. Feulner and G. Zimmerer for valuable discussions. Financial support from Deutsche Forschungsgemeinschaft is gratefully acknowledged

Дата: 2008

Завантажень: 278

Optically-stimulated desorption of «hot» excimers from pre-irradiated Ar solids

Анотація:

Electronically-induced desorption from solid Ar pre-irradiated by a low-energy electron beam was investigated by activation spectroscopy methods—photon-stimulated exoelectron emission and photon-stimulated luminescence in combination with spectrally-resolved measurements in the VUV range of the spectrum. Desorption of vibrationally excited argon molecules Ar₂ *(ν) from the surface of pre-irradiated solid Ar was observed for the first time. It was shown that desorption of «hot» Ar₂ *(ν) molecules is caused by recombination of self-trapped holes with electrons released from traps by visible-range photons. The possibility of optical stimulation of the phenomenon is evidenced.

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