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 532nm 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
Sep 23, 2008
Accession Number
ADA588698

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 Central Florida

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Absorption Spectra
  • Chemistry
  • Dynamics
  • Femtosecond Time
  • Films
  • Lasers
  • Materials
  • Measurement
  • Molecular Structure
  • Molecules
  • Nanosecond Time
  • Optical Properties
  • Optical Switching
  • Optics
  • Polymeric Films
  • Waveplates

Fields of Study

  • Physics

Readers

  • Molecular Photonics/Laser Physics
  • Polymer Science and Technology
  • Thin Film Deposition Science.