Role of nonlinear exciton interactions in obtaining optical bistability

Bohdan M. Nitsovich; C. Yu. Zenkova; S. G. Kharinovich

doi:10.1117/12.295663

1 December 1997 Role of nonlinear exciton interactions in obtaining optical bistability

Bohdan M. Nitsovich, C. Yu. Zenkova, S. G. Kharinovich

Author Affiliations +

Proceedings Volume 3317, International Conference on Correlation Optics; (1997) https://doi.org/10.1117/12.295663
Event: International Conference on Correlation Optics, 1997, Chernivsti, Ukraine

Abstract

This paper proposes for consideration an additional mechanism for influencing the exciton absorption spectra and observing temperature redistribution peculiarities of the crystal absorptive power. They are caused by nonlinear phonon-exciton interactions, which are due to anharmonic effects in the exciton-phonon system. The arising of the borderline frequency, which possesses the smallest region of optical bistability realization, is caused by a break in the direction of the absorption curve. At low temperatures the basic role is played by the exciton-exciton interaction, and at high temperatures nonlinear exciton-exciton-phonon processes play the most important role the value of the borderline frequency is defined by the size and sign of the nonlinear exciton-exciton-phonon function as well as by the crystal temperature and the exciton density, which is created by the external powerful laser wave.

Citation Download Citation

Bohdan M. Nitsovich, C. Yu. Zenkova, and S. G. Kharinovich "Role of nonlinear exciton interactions in obtaining optical bistability", Proc. SPIE 3317, International Conference on Correlation Optics, (1 December 1997); https://doi.org/10.1117/12.295663

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