Light diffraction from piezoelectric surface relief gratings in a photorefractive Bi/sub 12/TiO/sub 20/ crystal

Author

Stepanov, S. ; Korneev, N. ; Gerwens, A. ; Buse, K.

Author_Institution

INAOE, Puebla, Mexico

fYear

1998

fDate

3-8 May 1998

Firstpage

458

Lastpage

459

Abstract

Summary form only given. In several holographic experiments with photorefractive crystals (PRCs), detailed information concerning space-charge gratings in the near vicinity of the surface is needed. Examples include beam coupling in photorefractive surface waveguides, holographic recording with highly absorbed (e.g., UV) light in ferroelectric PRCs, or photoelectromagnetic flow signals (EMF) excitation in semiconductors with visible light. We show that direct observation of light diffraction from gratings formed at the surface of the PRCs can give the necessary information.

Keywords

bismuth compounds; holographic gratings; photoelectromagnetic effects; photorefractive materials; piezoelectric materials; space charge; Bi/sub 12/TiO/sub 20/; beam couplin; ferroelectric PRCs; highly absorbed UV light; holographic experiments; holographic recording; light diffraction; photoelectromagnetic flow signals; photorefractive Bi/sub 12/TiO/sub 20/ crystal; photorefractive crystals; photorefractive surface waveguides; piezoelectric surface relief gratings; space-charge gratings; visible light; Bismuth; Diffraction gratings; Holography; Optical modulation; Optical surface waves; Partial response channels; Photorefractive effect; Photorefractive materials; Solitons; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1998. CLEO 98. Technical Digest. Summaries of papers presented at the Conference on

Conference_Location

San Francisco, CA, USA

Print_ISBN

1-55752-339-0

Type

conf

DOI

10.1109/CLEO.1998.676494

Filename

676494