Anisotropy of the Linear and Third-Order Nonlinear Optical Properties of a Stretch-Oriented Polymer Film of Poly-(2,5-dimethoxy paraphenylenevinylene)

Abstract

Large linear refractive index birefringence, strong dichroic behavior, and highly anisotropic X(3) have been observed for a uniaxially oriented poly (2, 5-dimethoxy paraphenylene vinylene) film. A subpicosecond time-resolved degenerate four-wave mixing study revels an unusual behavior. Along the draw direction X(3) is complex with a negative real part and has a response time that is longer than the optical pulse resolution. In contrast, X(3) along the transverse direction is largely real and positive. Its response time is much faster, and is limited by the laser pulse width. (JES)

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Document Details

Document Type
Technical Report
Publication Date
Mar 05, 1990
Accession Number
ADA222217

Entities

People

  • Jacek Swiatkiewicz
  • Paras Nath Prasad

Organizations

  • University at Buffalo

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Absorption
  • Absorption Coefficients
  • Classification
  • Dye Lasers
  • Films
  • Laser Pulses
  • Lasers
  • Measurement
  • New York
  • Optical Materials
  • Optical Properties
  • Optics
  • Polymeric Films
  • Refractive Index
  • Security
  • Universities
  • Wave Mixing

Readers

  • Materials Science and Engineering.
  • Polymer Science and Technology
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Directed Energy