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Proceedings Paper

Photochromism of mixed sillenites
Author(s): Mieczyslaw Tadeusz Borowiec; Andrzej Majchrowski; Henryk Szymczak; Jozef Zmija; Miroslaw Zaleski
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Paper Abstract

Optical properties of some mixed B12TiO20 (BiTiO) and Bi40Ga2O63 (BiGaO) single crystals were investigated. The mixed single crystals have been grown with use of Top Seeded Solution Growth technique and Ti ion was substituted with V, Pb or Ga ions. Thermal conditions enabling growth of uniform [110] BiTiO and BiGaO single crystals with totally flat (110) interface have been found. Special interest was devoted to the problem of photochromic effect existing in investigated single crystals at temperatures lower than 200 K. The characteristic temperature of thermal bleaching and the wave length active in a coloring process (the coloring spectra) for all mixed single crystals were established. It was noticed that the substitution of some ions in tetrahedral positions had essential effect on photochromic properties of investigated mixed sillenites. In this case the photochromic effect should be related to the fundamental edge shift.

Paper Details

Date Published: 24 March 1999
PDF: 4 pages
Proc. SPIE 3724, International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications, (24 March 1999); doi: 10.1117/12.343001
Show Author Affiliations
Mieczyslaw Tadeusz Borowiec, Institute of Physics (Poland)
Andrzej Majchrowski, Military Univ. of Technology (Poland)
Henryk Szymczak, Institute of Physics (Poland)
Jozef Zmija, Military Univ. of Technology (Poland)
Miroslaw Zaleski, Institute of Physics (Poland)

Published in SPIE Proceedings Vol. 3724:
International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications
Andrzej Majchrowski; Jerzy Zielinski, Editor(s)

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