Transparent Glass Ceramics Doped by Chromium(III) and Chromium(III) and Neodymium(III) as New Materials for Lasers and Luminescent Solar Concentrators.

Abstract

Transparent galss ceramics with Cr(III) were obtained by different thermal treatment of glass with composition (mol%) 73.6 SiO2, 11.8 Al2O3, 4.2. Li2O, 7.0 ZnO, 1.6 TiO2, 1.5 ZrO2, 0.3 As2O3, 0.024 Cr2O3, melted under various conditions. Parallel measurements of X-ray diffraction, optical and EPR spectra reveal the different formation of gahnite from precursor glass or petalite-like phase. Laser excited emission spectra and decay curves of Cr3+ in gahnite-type glass-ceramics are compared with those in gahnite crystals. The nature of the Cr3+ sites is determined from the positions of the emission and excitation peaks and from measurements of the decay times.

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Document Details

Document Type
Technical Report
Publication Date
Apr 30, 1987
Accession Number
ADA191142

Entities

People

  • Alla Buch
  • Georges Boulon
  • Mehdi Bouderbala
  • Moshe Ish-shalom
  • Renata Reis

Organizations

  • Hebrew University of Jerusalem

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Analytical Chemistry
  • Chemical Synthesis
  • Chemistry
  • Crystallization
  • Crystals
  • Diffraction
  • Emission Spectra
  • Energy
  • Energy Transfer
  • Heat Treatment
  • Laser Spectroscopy
  • Materials
  • Solar Energy
  • Spectra
  • Spectroscopy
  • X Ray Spectra
  • X-Ray Diffraction

Fields of Study

  • Materials science
  • Physics

Readers

  • Materials Science and Engineering.
  • Molecular Photonics/Laser Physics
  • Surface Engineering/Surface Coating Technology.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers