FLUORESCENT ION INTERACTION IN LASER CRYSTALS

Abstract

Factors influencing the fluorescence of the neodymium ion in garnet crystals (especially Y3Al5O12) were investigated in order to improve the laser characteristics of these materials. In order to increase the doping levels of the active ions the effect of compensating ions on the concentration of neodymium ions for given growth conditions were investigated. Possible deleterious effects in the optical properties of the active ion in the presence of these compensating ions were also studied. The major degradation of the laser characteristics is the result of the 'coring' of the Y3Al5O12:Nd crystals. The use of energy transfer to enhance the fluorescence of the neodymium ion was considered. Energy transfer from the cerium ion and from the chromium ion to the neodymium ion was observed. In collateral studies, the optical properties of the cerium ion and the chromium ion in garnet crystals were extensively investigated. Methods of improving the efficiency of the energy transfer in these materials were considered.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1968
Accession Number
AD0665033

Entities

People

  • W. W. Holloway

Organizations

  • Sperry Corporation

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Absorption Spectra
  • Contracts
  • Crystal Growth
  • Department Of Defense
  • Energy Transfer
  • Governments
  • Laser Applications
  • Low Temperature
  • Luminescence
  • Massachusetts
  • Military Research
  • New York
  • Optical Properties
  • Radio Frequency Generators
  • United States
  • United States Government

Fields of Study

  • Engineering

Readers

  • Materials Science and Engineering.
  • Systems Analysis and Design

Technology Areas

  • Directed Energy