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TitleElectrically modulated diffraction gratings in organic chromophore thin films
Publication TypeJournal Article
Year of Publication2014
AuthorsKutuvantavida, Y., Williams G.V.M., and Bhuiyan M.D.H.
JournalApplied Optics
Pagination2687 - 2690
Date Published2014
ISSN1559-128X (ISSN)
KeywordsOrganic chromophores
AbstractAn electrically modulated diffraction grating has been demonstrated in poled polymer thin films containing the organic nonlinear optical chromophore, PYR-3 (2-{3-Cyano-4-[3-(1-decyl-1 H-pyridin-4-ylidene)-propenyl]-5,5-dimethy l-5 H-furan-2-ylidene}-malononitrile), and amorphous polycarbonate. A dc electric field induced change in the diffraction efficiency of up to 9% was observed. The diffraction efficiency modulation was likely due to an electric field induced change in the film thickness via a piezoelectric effect rather than via an electronic linear electro-optic effect. © 2014 Optical Society of America.

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