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Bridgman‐stockbarger growth and spectral characteristics of Al 2 O 3 :Ti 3+ single crystals
Author(s) -
Peshev P.,
Delineshev S.,
Petrov V.,
Manuilov N.,
Yankov P.,
Bachvarov I.
Publication year - 1988
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170230512
Subject(s) - luminescence , analytical chemistry (journal) , materials science , absorption (acoustics) , spectral line , absorption spectroscopy , crystallography , chemistry , optics , physics , optoelectronics , chromatography , astronomy , composite material
Single crystals of Al 2 O 3 :Ti 3+ (Ti ranging from 0.1–1.5 at.%) are grown by the Bridgman‐Stockbarger method from a mixture of Al 2 O 3 and Ti 2 O 3 in a medium of 90% Ar and 10% H 2 . The radial distribution of Ti 3+ in the crystals is determined by measuring the optical transmission. The absorption spectra of the crystals and the luminescence spectra of Ti 3+ in the Al 2 O 3 matrix are obtained and the crystals fluorescence lifetime is determined. The optical characteristics of the crystals have shown good agreement with the corresponding characteristics of Al 2 O 3 :Ti 3+ crystals grown by other methods.