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Proceedings Paper

Photoconducting nonlinear optical polymers
Author(s): Lian Li; Ru Jong Jeng; J. Y. Lee; Jayant Kumar; Sukant K. Tripathy
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Paper 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.

Paper Details

Date Published: 1 December 1991
PDF: 8 pages
Proc. SPIE 1560, Nonlinear Optical Properties of Organic Materials IV, (1 December 1991); doi: 10.1117/12.50722
Show Author Affiliations
Lian Li, Univ. of Lowell (United States)
Ru Jong Jeng, Univ. of Lowell (United States)
J. Y. Lee, Univ. of Lowell (United States)
Jayant Kumar, Univ. of Lowell (United States)
Sukant K. Tripathy, Univ. of Lowell (United States)

Published in SPIE Proceedings Vol. 1560:
Nonlinear Optical Properties of Organic Materials IV
Kenneth D. Singer, Editor(s)

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