Crystalline Colloidal Array Optical Switching Devices.

Abstract

We have constructed nonlinear crystalline colloidal arrays from self assembling fluorinated colloidal particles which contain dyes. These colloidal arrays were refractive index matched to the medium such that they do not diffract light. We have observed for the first time the theoretically predicted nonlinear diffraction switching when a pump laser beam is incident at a wavelength absorbed by the dye. The colloidal particle array heats up. The refractive index diverges from that of the medium, and diffracts a probe beam.

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Document Details

Document Type
Technical Report
Publication Date
Sep 13, 1996
Accession Number
ADA314917

Entities

People

  • G. Pan
  • S. A. Asher

Organizations

  • University of Pittsburgh

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Chemistry
  • Coherent Radiation
  • Crystal Structure
  • Diffraction
  • Dye Lasers
  • Lasers
  • Liquid Dye Lasers
  • Materials
  • Military Research
  • Optical Switching
  • Particles
  • Radiation
  • Refractive Index
  • Switching
  • United States Government

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers