Optical hysteresis and nonlinear light absorption in a-Si:H and a-SiC:H thin films

Valentin N. Ciumash; Ion A. Cojocaru; G. Bostan; G. Para; Giampiero de Cesare; S. La Monica; Gabriella Maiello; A. Ferrari

doi:10.1117/12.226165

3 November 1995 Optical hysteresis and nonlinear light absorption in a-Si:H and a-SiC:H thin films

Valentin N. Ciumash, Ion A. Cojocaru, G. Bostan, G. Para, Giampiero de Cesare, S. La Monica, Gabriella Maiello, A. Ferrari

Author Affiliations +

Proceedings Volume 2648, International Conference on Optical Diagnostics of Materials and Devices for Opto-, Micro-, and Quantum Electronics; (1995) https://doi.org/10.1117/12.226165
Event: International Conference on Optical Diagnostics of Materials and Devices for Opto-, Micro-, and Quantum Electronics, 1995, Kiev, Ukraine

Abstract

An optical hysteresis and nonlinear absorption of the microsecond and nanosecond laser pulse at interband excitation of different a-Si:H and a-SiC:H films are reported. To explain the experimental results a new physical model is suggested, taking into account the light interaction with nonequilibrium localized lattice vibrations anharmonically coupled with the extended phonons.

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Valentin N. Ciumash, Ion A. Cojocaru, G. Bostan, G. Para, Giampiero de Cesare, S. La Monica, Gabriella Maiello, and A. Ferrari "Optical hysteresis and nonlinear light absorption in a-Si:H and a-SiC:H thin films", Proc. SPIE 2648, International Conference on Optical Diagnostics of Materials and Devices for Opto-, Micro-, and Quantum Electronics, (3 November 1995); https://doi.org/10.1117/12.226165

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