Third Order Optical Nonlinearity in a Polymer Composite,

Abstract

Third-order optical nonlinearity in organic materials has generally been sought from molecules and Polymers having extended 7c-electron delocalization in conjugated bonding schemes. In an alternative approach, we have investigated the third-order optical response of a polymeric composite containing charge transfer complexes in which the nonlinearity originates from intermolecular electron delocalization between pi-electron clouds in charge transfer stacks. The material, which is composed of a polymer having electron donating pendant side groups that complex with dopant electron-acceptor molecules, has been processed into an optically clear thin film. Nonlinear characterization of the film by means of third-harmonic generation suggests enhancement of the third-order response arising from charge transfer interactions.

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1991
Accession Number
ADP007464

Entities

People

  • C.v. Francis
  • D.j. Gerbi
  • James D. Stevens
  • K.m. White
  • R.e. Harelstad

Organizations

  • 3M

Tags

DTIC Thesaurus Topics

  • Charge Transfer
  • Composite Materials
  • Electron Acceptors
  • Electrons
  • Films
  • Materials
  • Molecules
  • Organic Materials
  • Polymer Matrix Composites
  • Thin Films
  • Third Harmonic Generation

Readers

  • Materials Science and Engineering.
  • Organic Chemistry
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • Microelectronics