Intensive Optical Field Improves the Photopolymerization-Induced Alignment Quality of Liquid Crystals

Abstract

Based on a novel concept that intensive optical field may improve alignment of polymer films photo polymerized by linearly polarized laser light we investigated effects of instantaneous intensity of the laser light and viscosity of the films on alignment of liquid crystals on the photo polymerization-induced anisotropic films. The intensity and the viscosity are the two essential factors related intimately to magnitude and relaxation time of the reorientation Kerr effect. The experiments demonstrated that the increase in the intensity and the decrease of the viscosity improved the photopolymerization induced orientation of the films. Based on the photochemical points we discussed causes of the improvement.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2000
Accession Number
ADP011320

Entities

People

  • Sun Li
  • Wang Shumei

Organizations

  • Yantai University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Crystals
  • Films
  • Kerr Effects
  • Laser Beams
  • Laser Pulses
  • Lasers
  • Liquid Crystal Displays
  • Liquid Crystals
  • Molecules
  • Optical Kerr Effect
  • Optical Properties
  • Orientation (Direction)
  • Polymeric Films
  • Polymers
  • Refractive Index
  • Transitions
  • Yag Lasers

Fields of Study

  • Physics

Readers

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

Technology Areas

  • Directed Energy
  • Directed Energy - Pulsed-Laser Deposition