Time-resolved studies of photoinduced birefringence in azobenzene dye-doped polymer films

ChuanXiang Sheng, Robert A Norwood, Jiafu Wang, Jayan Thomas, Wu Yinglan, Zhiping Zheng, N. Tabirian, Diane M. Steeves, Brian R. Kimball, Nasser N Peyghambarian

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13 Scopus citations

Abstract

We measured transient photoinduced birefringence (n) in various azobenzene dye films by pumping with a nanosecond pulse at 532 nm and probing at 633 ran. The switch-on times for the photoinduced birefringence range from nanoseconds to milliseconds and are systematically related with the lowest optical transition energies for those films. Moreover, our results suggest that the transient photoinduced birefringence measurement is a convenient way to determine the relative energies of it-it* and n-p* states in azo-based materials.

Original languageEnglish (US)
Pages (from-to)5074-5077
Number of pages4
JournalApplied Optics
Volume47
Issue number28
DOIs
Publication statusPublished - Oct 1 2008

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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