Photovoltaic Field-Induced Self-Phase Modulation in Liquid Crystal Cells (Preprint)

Abstract

We show that photovoltaic fields generated internally in LiNbO3:Fe substrates are capable of efficiently reorienting liquid crystal molecules leading to new concepts of optically addressable light modulators. Using an arrangement consisting of a liquid crystal layer in contact with one or more LiNbO3:Fe photovoltaic substrates, we observe spatial filtering due to self-phase modulation in a planar oriented cell. The LiNbO3:Fe substrates are arranged such that light propagates along the +c axis, allowing a secondary process of power transfer to occur through photore-fractive contra-directional two-beam coupling.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2006
Accession Number
ADA463273

Entities

People

  • Dean R. Evans
  • Gary Cook
  • Jennifer L. Carns
  • Mohammad A. Saleh
  • Nelson V. Tabiryan
  • Sergei A. Basun
  • Svetlana V. Serak

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Couplings
  • Crystals
  • Detectors
  • Electric Fields
  • Government Procurement
  • Governments
  • Liquid Crystals
  • Materials
  • Military Research
  • Modulation
  • Molecules
  • Orientation (Direction)
  • Phase Modulation
  • Refractive Index
  • Substrates

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Thin Film Deposition Science.