The still unknown azobenzene - wavelength dependent photoanisotropy in amorphous azobenzene polymers

Opt Express. 2013 Jan 28;21(2):1812-9. doi: 10.1364/OE.21.001812.

Abstract

We demonstrate a new type of anisotropy in thin films of amorphous azobenzene polymers induced between 570 and 633 nm, where the absorbance in the film is on the order of 0.05. The anisotropy has a pronounced radial contribution. This observation points to an additional mechanism for the alignment of azobenzene molecules.

MeSH terms

  • Absorption
  • Anisotropy
  • Azo Compounds / chemistry*
  • Azo Compounds / radiation effects
  • Light
  • Materials Testing
  • Polymers / chemistry*
  • Polymers / radiation effects
  • Refractometry / methods*

Substances

  • Azo Compounds
  • Polymers
  • azobenzene