Investigation of the dielectric, optical and photorefractive properties of Sb-doped Sn2P2S6 crystals

Investigation of the dielectric, optical and photorefractive properties of Sb-doped Sn2P2S6 crystals

In this work we report results on electro-physical, optical and photorefractive investigations for Sb-doped Sn 2 P 2 S 6 crystals. The crystals are obtained by two methods: the vapour-transport technique and the Bridgman technique using stoichiometric Sn 2 P 2 S 6 composition with different amounts...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Vol. 92; no. 4; pp. 549 - 554
Main Authors: Kedyk, I. V., Mathey, P., Gadret, G., Grabar, A. A., Fedyo, K. V., Stoika, I. M., Prits, I. P., Vysochanskii, Y. M.
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer-Verlag 01-09-2008
Springer
Springer Verlag
Subjects:
Antimony
Bridgman method
Coupling coefficients
Crystal growth
Crystals
Diffraction gratings
Engineering
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Lasers
Nonlinear optics
Optical Devices
Optics
Optimization
Phase conjugation, optical mixing; photorefractive and kerr effects
Photonics
Physical Chemistry
Physics
Physics and Astronomy
Quantum Optics
Spectra
42.40.Eq
42.70.Mp
42.70.Nq
42.65.Hw
42.70.Km
42.70.Ln
Photorefractive effect
Dielectric materials
Ternary compounds
Dielectric properties
Optical properties
Doped materials
Antimony additions
Absorption spectra
Nonlinear optics
Bridgman method
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Summary:In this work we report results on electro-physical, optical and photorefractive investigations for Sb-doped Sn 2 P 2 S 6 crystals. The crystals are obtained by two methods: the vapour-transport technique and the Bridgman technique using stoichiometric Sn 2 P 2 S 6 composition with different amounts of antimony in the initial compound. The good optical quality of the crystals obtained with the Bridgman technique is underlined. The dependences of the photorefractive two-beam coupling coefficient and the grating build-up time are investigated at the wavelength of 633 nm. It is found that the sample doped with 1.5% of Sb is characterized by an optimal combination of the main photorefractive parameters exhibiting a fairly high two-beam coupling coefficient (up to 20 cm −1 ) and a short response time (1.3 ms) that is the shortest among all the previously studied Sn 2 P 2 S 6 crystals in the red spectral region.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-008-3104-5