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Paper Information

Journal:   JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY)   SPRING 2006 , Volume 16 , Number 59 (PHYSICS ISSUE); Page(s) 1 To 12.
 
Paper: 

MODELING OF INCREASING ABSORPTION OPTICAL BISTABILITY IN BULK ZNSE AT DIFFERENT THICKNESSES

 
 
Author(s):  ESNAASHARI Y.*, KOUHIAN A.A., JELVANI S., ABOU ALHOSSEINI SH.
 
* PHYSIC DEPARTMENT, IMAM KHOMEINI INTERNATIONAL UNIVERSITY, QAZVIN, IRAN
 
Abstract: 

In this present paper we report a mathematical analysis of absorptive bistability either in combination with self-fousing or in the absence of it in bulk ZnSe at room temperature, at 80-300 miliwatt power levels, for the 476-nm visible wavelength. This method is based on the nonlinear variations of temperature-dependent absorption coefficient near the band edge. It has been also obtained some theoretical input-output curves, showing hysteresis loop, that clearly reproduce the main qualitative features of the experiments with generally good quantitative agreement. In addition, changes in the hysteresis loops have been considered when the two parameters of thickness of the sample and size of the input beam have been changed.

 
Keyword(s): INCREASING ABSORPTION/ABSORPTIVE OPTICAL BISTABILITY, SELF-FOCUSING, BULK ZNSE
 
References: 
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