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

Journal Article · Sun Mar 15 00:00:00 EDT 2015 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2014.11.033· OSTI ID:22420828

Kostić, S. ^[1]; Radojević, V. ^[2]; Milutinović, A.; Romčević, M.; Romčević, N. Ž. ^[1]; Valčić, A. ^[2]

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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)

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 polished 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.

• OSTI ID: 22420828
• Journal Information: Materials Research Bulletin, Vol. 63; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

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