Effect of space charge transport on dynamic photorefractivity

A. V. Agashkov; A. V. Kovalev; J. Parka

doi:10.1117/12.750185

17 July 2007 Effect of space charge transport on dynamic photorefractivity

A. V. Agashkov, A. V. Kovalev, J. Parka

Proceedings Volume 6725, ICONO 2007: Nonlinear Space-Time Dynamics; 672511 (2007) https://doi.org/10.1117/12.750185
Event: The International Conference on Coherent and Nonlinear Optics, 2007, Minsk, Belarus

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.

Citation Download Citation

A. V. Agashkov, A. V. Kovalev, and J. Parka "Effect of space charge transport on dynamic photorefractivity", Proc. SPIE 6725, ICONO 2007: Nonlinear Space-Time Dynamics, 672511 (17 July 2007); https://doi.org/10.1117/12.750185

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