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Title: Study of structural and optical properties of YAG and Nd:YAG single crystals

Highlights: • Transparent YAG and pale pink Nd:YAG single crystals were produced by the Czochralski technique. • Growth mechanisms and shape of the liquid/solid interface and incorporation of Nd{sup 3+} were studied. • The structure of the crystals was investigated by X-ray diffraction, Raman and IR spectroscopy. • The 15 Raman and 17 IR modes were observed. • The obtained YAG and Nd:YAG single crystals were without core and of good optical quality. - Abstract: Yttrium aluminum garnet (YAG, Y{sub 3}Al{sub 5}O{sub 12}) and yttrium aluminum garnet doped with neodymium (Nd:YAG) single crystals were grown by the Czochralski technique. The critical diameter and the critical rate of rotation were calculated. Suitable polishing and etching solutions were determined. As a result of our experiments, the transparent YAG and pale pink Nd:YAG single crystals were produced. The obtained crystals were studied by X-ray diffraction, Raman and IR spectroscopy. The crystal structure was confirmed by XRD. The 15 Raman and 17 IR modes were observed. The Raman and IR spectroscopy results are in accordance with X-ray diffraction analysis. The obtained YAG and Nd:YAG single crystals were without core and of good optical quality. The absence of a core was confirmed by viewing polishedmore » crystal slices. Also, it is important to emphasize that the obtained Nd:YAG single crystal has a concentration of 0.8 wt.% Nd{sup 3+} that is characteristic for laser materials.« less
Authors:
 [1] ;  [1] ;  [2] ; ; ;  [1] ;  [2]
  1. Institute of Physics, University of Belgrade, P.O. Box 68, Pregrevica 118, Zemun, Belgrade (Serbia)
  2. Faculty of Technology and Metallurgy, University of Belgrade, Belgrade (Serbia)
Publication Date:
OSTI Identifier:
22420828
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 63; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINATES; CONCENTRATION RATIO; CRYSTAL GROWTH; CRYSTAL STRUCTURE; DOPED MATERIALS; INFRARED SPECTRA; INTERFACES; LASER MATERIALS; LIQUIDS; MONOCRYSTALS; NEODYMIUM COMPOUNDS; NEODYMIUM IONS; OPTICAL PROPERTIES; RAMAN SPECTROSCOPY; SOLIDS; X-RAY DIFFRACTION; YTTRIUM COMPOUNDS