Time-Resolved Studies of Photoinduced Birefringence in Azobenzene Dye-Doped Polymer Films

Abstract

We measured transient photoinduced birefringence (delta n) in various azobenzene dye films by pumping with a nanosecond pulse at 532 nm and probing at 633 nm. 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 pi-pi* and n-pi* states in azo-based materials.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2008
Accession Number
ADA510933

Entities

People

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

Organizations

  • University of Arizona

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Absorption Spectra
  • Azobenzenes
  • Birefringence
  • Chemistry
  • Femtosecond Time
  • Films
  • Lasers
  • Materials
  • Measurement
  • Molecules
  • Nanosecond Time
  • Optical Properties
  • Optics
  • Polymeric Films
  • Polymers
  • Waveplates

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Quantum Chemistry
  • Thin Film Deposition Science.