Time Scales And Quantum-Size Effects In Optical Nonlinearities Of Semiconductor And Metal Microcrystallites In Glasses

P. Roussignol; F. Hache; D. Ricard; C. Flytzanis

doi:10.1117/12.961466

21 December 1989 Time Scales And Quantum-Size Effects In Optical Nonlinearities Of Semiconductor And Metal Microcrystallites In Glasses

P. Roussignol, F. Hache, D. Ricard, C. Flytzanis

Author Affiliations +

Proceedings Volume 1128, Glasses for Optoelectronics; (1989) https://doi.org/10.1117/12.961466
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France

Abstract

In the last few years, metal or semiconductor-doped glasses have been shown to possess attractive nonlinear optical properties. The Kerr nonlinearity of the embedded microcrystallites is enhanced by the local field effect or by the quantum size effect. Preparation, characterization and experimental techniques are described. The main results are then reviewed for both types of materials. For gold-doped glasses, the nonlinear mechanism is fully understood. Semiconductor-doped glasses fall into two categories : larger particles for which the quantum size effect is weak and for which the nonlinear mechanism is mainly band filling and smaller particles exhibiting quantum confinement and behaving as saturable two-level systems ; the importance of phonon broadening has been shown. In all semiconductor-doped glasses, photodarkening and Auger recombination strongly reduce the nonlinear response time.

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P. Roussignol, F. Hache, D. Ricard, and C. Flytzanis "Time Scales And Quantum-Size Effects In Optical Nonlinearities Of Semiconductor And Metal Microcrystallites In Glasses", Proc. SPIE 1128, Glasses for Optoelectronics, (21 December 1989); https://doi.org/10.1117/12.961466

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