| Numéro |
J. Phys. Colloques
Volume 41, Numéro C4, Mai 1980
Laser Induced Nucleation in Solids / Nucléation induite par laser dans les solides
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|---|---|---|
| Page(s) | C4-63 - C4-69 | |
| DOI | https://doi.org/10.1051/jphyscol:1980410 | |
Laser Induced Nucleation in Solids / Nucléation induite par laser dans les solides
J. Phys. Colloques 41 (1980) C4-63-C4-69
DOI: 10.1051/jphyscol:1980410
Central Research Institute for Physics H-1525 Budapest, P.O.B. 49, Hungary.
J. Phys. Colloques 41 (1980) C4-63-C4-69
DOI: 10.1051/jphyscol:1980410
LASER INDUCED OSCILLATORY PHENOMENA IN AMORPHOUS GeSe2 FILMS
J. HajtóCentral Research Institute for Physics H-1525 Budapest, P.O.B. 49, Hungary.
Abstract
Studying the optical properties of 5µ to 10µ thick GeSe2 glassy films under the influence of focussed, continuous He-Ne laser beams a region of medium intensity (1.4 to 2.7 kW/cm2) is found where a low frequency (3 to 5 Hz) periodic pulsation in the absorption coefficient sets in. A tentative explanation is suggested in terms of laser induced self-trapped exciton states of the material.