Share Email Print
cover

Proceedings Paper

Nonlinear absorption of laser pulses in amorphous and crystalline As2S3 thin films
Author(s): Valentin N. Chumash; G. Bostan; Ion A. Cojocaru; Niculae E. Mincu; P. Cerbari
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Results of the experimental investigations of absorption of laser pulses in amorphous (a-) and crystalline (c-) As2S3 films are presented. The optical transmission hysteresis and reversible film photodarkening at interband excitation of a-As2S3 films in a blue-green spectral region are reported. It was suggested that the nonlinear light absorption could be explained by taking into account the light interaction with nonequilibrium localized lattice vibrations anharmonically coupled with the extended phonons. The measurements of peculiarities of the pulse absorption in crystalline As2S3 films can confirm the proposed explanation.

Paper Details

Date Published: 3 November 1995
PDF: 5 pages
Proc. SPIE 2648, International Conference on Optical Diagnostics of Materials and Devices for Opto-, Micro-, and Quantum Electronics, (3 November 1995); doi: 10.1117/12.226170
Show Author Affiliations
Valentin N. Chumash, Institute of Applied Physics (Moldova)
G. Bostan, Institute of Applied Physics (Moldova)
Ion A. Cojocaru, Institute of Applied Physics (Moldova)
Niculae E. Mincu, Institute of Optoelectronics (Romania)
P. Cerbari, Institute of Applied Physics (Moldova)


Published in SPIE Proceedings Vol. 2648:
International Conference on Optical Diagnostics of Materials and Devices for Opto-, Micro-, and Quantum Electronics
Sergey V. Svechnikov; Mikhail Ya. Valakh, Editor(s)

© SPIE. Terms of Use
Back to Top