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New highly efficient photorefractive polymer composite for optical-storage and image-processing applications

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5 Author(s)

Reversible holographic storage and beam amplification has been achieved in a new polymer composite using a low-power semiconductor visible laser diode emitting at 674 nm. This material shows substantially better performance than the existing photorefractive polymeric materials. A diffraction efficiency of 5%, a gain coefficient of 30 cm-1 and a net gain of 6 cm-1 have been measured in 105 mu -thick samples with an applied field of 40 V/ mu m.

Published in:

Electronics Letters  (Volume:29 ,  Issue: 21 )