Laser-Heating of a Transparent Crystal via Adsorbed Atoms.

Abstract

A coated surface of a crystal is irradiated by intense infrared light. The optically active atomic bonds absorb photons from the laser field, and the subsequent spontaneous decay goes together with emissions of phonons into the crystal. This photon phonon conversion results in an energy flux into the crystal. An equation for this flux is derived from the master equation for the level populations of the dressed atomic states. The saturation limit is discussed, and the general theory is illustrated with two examples. Furthermore, it is outlined with qualitative arguments that quantum yield of photodesorption is not sensitive to the laser power. Keywords: Laser heating; Transparent crystal; VIA Adsorbed atoms; Photon phonon conversion; Master equation; photodesorption.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1986
Accession Number
ADA173580

Entities

People

  • Henk F. Arnoldus
  • Sander Van Smaalen
  • Thomas F. George

Organizations

  • University at Buffalo

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Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Chemical Engineering
  • Chemistry
  • Conversion
  • Couplings
  • Energy Transfer
  • Engineering
  • Governments
  • Materials
  • Materials Science
  • Military Research
  • New York
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  • United States
  • United States Government
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Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Thermal Physics or Thermal Science.

Technology Areas

  • Directed Energy
  • Quantum Computing