COMPRESSION, SELF-BENDING, AND COLLAPSE OF GAUSSIAN BEAMS IN PHOTOREFRACTIVE CRYSTALS

• Type: Article in International Scientific Journal
• Date: 1994

Authors

CHRISTODOULIDES, DN (Author) Other; Maria Inês Barbosa de Carvalho (Author) Other

Journal

Title: Optics Letters

Vol. 19

Pages: 1714-1716

ISSN: 0146-9592

Publisher: Optical Society of America

Indexing

ISI Web of Knowledge - 100 Citations

Scopus - 122 Citations

Other information

Authenticus ID: P-008-PD1

DOI: 10.1364/ol.19.001714

Abstract (EN): By means of an exact solution, we demonstrate that a Gaussian beam can undergo spatial compression when it traverses a photorefractive medium. This is possible provided that the external bias field exceeds the critical value necessary to establish photorefractive spatial solitons. In this regime and under paraxial assumptions our analysis indicates that a Gaussian beam tends to exhibit self-focusing collapse. Beam self-deflection effects that arise from the pi/2-phase-shifted component of the photorefractive grating are also considered in our study.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 3