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

Details Optically-stimulated desorption of 'hot' excimers from pre-irradiated Ar solids Optically-stimulated desorption of 'hot' excimers from pre-irradiated Ar solids

2007-11-07

arxiv.org/abs/0711.1065v2

Physics

Condensed Matter

Other Condensed Matter

The complete version of the paper will be published in Fiz. Nizk. Temp. (Low Temp. Phys.)

Scientific paper

10.1063/1.2889413

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^*(v) from the surface of pre-irradiated solid Ar was observed for the first time. It was shown that desorption of 'hot' Ar2^*(v) 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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