Photorefractive Properties of Poly(N-Vinyl Carbazole)-Based Composites
for High Speed Applications
M. A. Díaz-García, D. Wright, J. D. Casperson,
B. Smith, E. Glazer, W. E. Moerner, L. I. Sukhomlinova,
and R. J. Twieg
The photorefractive properties of polymer composites based on
poly(N-vinyl carbazole), doped with the sensitizer C60, the plasticizer
butyl benzyl phthalate, and two series of chromophores are presented. The
influence of the structure and oxidation potential of the chromophore
on the photorefractive properties is discussed. These materials
show promise for video-rate optical processing applications,
since they exhibit fast response times (beam-coupling growth
times tg as small
as 60 ms at 50 V/mm applied field and 200 mW/cm2 intensity and tg as small as 5 ms at 100 V/mm and 1 W/cm2).
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