Novel Photorefractive and Electro-Optic Polymers-Rational Designs, Synthesis and Mechanism

Abstract

This report describes our effort in the past three years on synthesis and characterization of novel photorefractive polymer system. Two major systems were developed, one of which combined the ionic transition metal complexes and a conjugated polymer backbone bearing NLO chromophores to manifest large photorefractive effect. Another is a molecular material containing oligothiophene and a nonlinear optical (NLO) chromophore. A large net optical gain (>200/cm) at a zero electric field was observed in the metal containing system. In the molecular system, a net optical gain of 83/cm and a diffraction efficiency of nearly 40% were obtained in a film made from this molecule under an applied field of 706 kv/cm. A fast response time of for the grating formation, 42 ms under 616 kv/cm, was observed.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Nov 19, 1998
Accession Number
ADA383902

Entities

People

  • Luping Yu

Organizations

  • University of Chicago

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amorphous Materials
  • Chemical Synthesis
  • Chemistry
  • Composite Materials
  • Conjugated Polymers
  • Energy Transfer
  • Glass Transition Temperature
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Organic Chemistry
  • Polymeric Films
  • Polymers
  • Refractive Index
  • Transition Metals
  • Transition Temperature
  • Wave Mixing

Readers

  • Materials Science and Engineering.
  • Optical Physics and Photonics.
  • Polymer Science and Technology