Photoconducting nonlinear optical polymers

Lian Li; Ru Jong Jeng; J. Y. Lee; Jayant Kumar; Sukant K. Tripathy

doi:10.1117/12.50722

1 December 1991 Photoconducting nonlinear optical polymers

Lian Li, Ru Jong Jeng, J. Y. Lee, Jayant Kumar, Sukant K. Tripathy

Proceedings Volume 1560, Nonlinear Optical Properties of Organic Materials IV; (1991) https://doi.org/10.1117/12.50722
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

Photoconductivity and third order optical nonlinearity measurements on a dye doped photocrosslinkable nonlinear optical (NLO) polymer -- PVCN (polyvinylcinnamate)/CNNB-R (3-cinnamoyloxy-4-[4-(N,N-diethylamino)-2-cinnamoyloxy phenylazo] nitrobenzene) are presented. Photoconductivity was measured in this polymer system, in both photocrosslinked and uncrosslinked states, without introducing any photosensitizer and photocharge transport agents. Absorption of CNNB-R, peaked at 518 nm, leads to photocharge generation and it is conjectured that CNNB-R also plays a role in the photocharge transport. Additionally, no phase segregation was observed with CNNB-R concentration up to 33wt%. Large quadratic electro-optic coefficients were measured at 633 nm with a modified Michelson interferometer at different CNNB-R concentrations.

Citation Download Citation

Lian Li, Ru Jong Jeng, J. Y. Lee, Jayant Kumar, and Sukant K. Tripathy "Photoconducting nonlinear optical polymers", Proc. SPIE 1560, Nonlinear Optical Properties of Organic Materials IV, (1 December 1991); https://doi.org/10.1117/12.50722

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