Direct observation of orientation limit in a fast photorefractive polymer composite

J. A. Herlocker, K. B. Ferrio, E. Hendrickx, B. D. Guenther, S. Mery, B. Kippelen, N. Peyghambarian

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94 Scopus citations

Abstract

The photorefractivity and chromophore orientation in polymer composites were studied. The composites were made from poly-N-vinylcarbazole, N-ethylcarbazole, and (2,4,7-trinitro-9-fluorenylidene)malonodinitrile with a fluorinated cyano-tolane chromophore. The transient photorefractive response in four-wave mixing (FWM) and two-beam coupling (TBC) was measured. Transient FWM revealed a photorefractive response dominated by a fast time constant of 4 ms, while transient ellipsometry revealed an orientational response of only 490 μs.

Original languageEnglish (US)
Pages (from-to)2253-2255
Number of pages3
JournalApplied Physics Letters
Volume74
Issue number16
DOIs
StatePublished - Apr 19 1999

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Herlocker, J. A., Ferrio, K. B., Hendrickx, E., Guenther, B. D., Mery, S., Kippelen, B., & Peyghambarian, N. (1999). Direct observation of orientation limit in a fast photorefractive polymer composite. Applied Physics Letters, 74(16), 2253-2255. https://doi.org/10.1063/1.123816