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Proceedings Paper

Accurate description of the light self-diffraction on high-modulated dynamic gratings in semiconductor materials
Author(s): Mariana Petris; Valentin I. Vlad; Letitia Voicu; Raluca A. Negres
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Paper Abstract

The light self-diffraction in the case of the high modulated phase gratings induced in semiconductor materials is studied by solving numerically the set of the coupled wave equations, which were used previously for gratings produced by linear phenomena. We have extended this formalism to include the case of the absorbing materials and the nonuniformity of the interfering laser beams, which induce the gratings. Finally, we compare this description with our experimental data obtained in the self-diffraction on the phase gratings induced in crystalline silicon wafers by Nd:YAG laser beams. The experimental results are fitting better our theoretical description.

Paper Details

Date Published: 8 March 1995
PDF: 5 pages
Proc. SPIE 2461, ROMOPTO '94: Fourth Conference in Optics, (8 March 1995); doi: 10.1117/12.203548
Show Author Affiliations
Mariana Petris, Institute of Atomic Physics (Romania)
Valentin I. Vlad, Institute of Atomic Physics (Romania)
Letitia Voicu, Institute of Atomic Physics (Romania)
Raluca A. Negres, Institute of Atomic Physics (Romania)

Published in SPIE Proceedings Vol. 2461:
ROMOPTO '94: Fourth Conference in Optics
Valentin I. Vlad, Editor(s)

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