Nonlinear optical properties of germanium diselenide glasses

Emmanuel Haro-Poniatowski; Manuel Fernandez Guasti

doi:10.1117/12.46011

1 August 1991 Nonlinear optical properties of germanium diselenide glasses

Emmanuel Haro-Poniatowski, Manuel Fernandez Guasti

Proceedings Volume 1513, Glasses for Optoelectronics II; (1991) https://doi.org/10.1117/12.46011
Event: ECO4 (The Hague '91), 1991, The Hague, Netherlands

Abstract

Recent experiments regarding the nonlinear optical properties of germanium diselenide glass in thin films and bulk forms are presented. The observed effects are optical bistability without external feedback, laser-induced diffraction patterns, and phase conjugation. These effects are investigated using a 25 mW He-Ne laser at 632.8 nm. The above-mentioned effects show common features, the main one being that they are reversible provided that a certain irradiation power is not reached. Above this threshold the effects are permanent given sufficient exposure time. The recording resolution of the system is diffraction limited below the threshold. The underlying phenomenon responsible for the intensity-dependent refractive index change is believed to be due to photostructural reordering and reorientation of the material.

Citation Download Citation

Emmanuel Haro-Poniatowski and Manuel Fernandez Guasti "Nonlinear optical properties of germanium diselenide glasses", Proc. SPIE 1513, Glasses for Optoelectronics II, (1 August 1991); https://doi.org/10.1117/12.46011

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