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Proceedings Paper

Holographic photocurrent in photorefractive crystals
Author(s): Natalia E. Noginova; Nickolai V. Kukhtarev; Bo Su Chen; H. John Caulfield; Putcha Venkateswarlu; Mikhail A. Noginov
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Paper Abstract

A transient photo-electric current was investigated in photorefractive crystals of Sr1-xBaxNb2O6 (SBN) and Bi12TiO20 (BTO) as a response to a step-like modulation of the light grating phase. Different dependencies of the photocurrent relaxation time on the grating period were observed for SBN and BTO crystals. It is explained theoretically taking into consideration kinetics of the photoexcitation of carriers, charge transfer and trapping. A number of important parameters characterizing the crystals are estimated.

Paper Details

Date Published: 29 April 1996
PDF: 13 pages
Proc. SPIE 2795, Nonlinear Optics of Liquid and Photorefractive Crystals, (29 April 1996); doi: 10.1117/12.239203
Show Author Affiliations
Natalia E. Noginova, Alabama A&M Univ. (United States)
Nickolai V. Kukhtarev, Alabama A&M Univ. (United States)
Bo Su Chen, Alabama A&M Univ. (United States)
H. John Caulfield, Alabama A&M Univ. (United States)
Putcha Venkateswarlu, Alabama A&M Univ. (United States)
Mikhail A. Noginov, Alabama A&M Univ. (United States)

Published in SPIE Proceedings Vol. 2795:
Nonlinear Optics of Liquid and Photorefractive Crystals
Gertruda V. Klimusheva; Andrey G. Iljin, Editor(s)

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