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Proceedings Paper

Effect of space charge transport on dynamic photorefractivity
Author(s): A. V. Agashkov; A. V. Kovalev; J. Parka
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Paper Abstract

We have found that to achieve dynamic photorefractivity regime the external electric field (>20 V, >1 s) should be applied to the cell with photoconducting orienting layers prior to its operation. These conditions are automatically fulfilled for low-frequency ac electric field. Investigations have shown that only normal (transverse) rolls possess resonance interplay with periodic charge pattern induced by optical interference field on photoconducting orienting layers. If charge of ITO electrodes prevents separated charges to move back, neither transverse rolls, nor dynamic photorefractivity are observed.

Paper Details

Date Published: 17 July 2007
PDF: 8 pages
Proc. SPIE 6725, ICONO 2007: Nonlinear Space-Time Dynamics, 672511 (17 July 2007); doi: 10.1117/12.750185
Show Author Affiliations
A. V. Agashkov, Institute of Electronics (Belarus)
A. V. Kovalev, Institute of Electronics (Belarus)
J. Parka, Military Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 6725:
ICONO 2007: Nonlinear Space-Time Dynamics
Yuri Kivshar; Nikolay Rosanov, Editor(s)

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