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Proceedings Paper

Role of nonlinear exciton interactions in obtaining optical bistability
Author(s): Bohdan M. Nitsovich; C. Yu. Zenkova; S. G. Kharinovich
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Paper 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.

Paper Details

Date Published: 1 December 1997
PDF: 7 pages
Proc. SPIE 3317, International Conference on Correlation Optics, (1 December 1997); doi: 10.1117/12.295663
Show Author Affiliations
Bohdan M. Nitsovich, Chernivtsy Univ. (Ukraine)
C. Yu. Zenkova, Chernivtsy Univ. (Ukraine)
S. G. Kharinovich, Chernivtsy Univ. (Ukraine)


Published in SPIE Proceedings Vol. 3317:
International Conference on Correlation Optics

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