Title :
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
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;
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
DOI :
10.1109/CLEO.1998.676494
