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Proceedings Paper

Photorefractivity of cadmium telluride crystals
Author(s): O. K. Khasanov; O. M. Fedotova; V. I. Levchenko; N. F. Kurilovich; I. N. Agishev; A. L. Tolstik; A. E. Korolev; A. V. Koklyushkin
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Paper Abstract

This paper is devoted to growth and doping of semiconductor photorefractive cadmium telluride (CdTe) crystals as well as to the investigation into their spectroscopic and non-linear optical properties. The crystals are doped with vanadium, iron, and titanium. Two methods have been used for the production of doped crystals: diffused post-growth doping and growth of doped crystals from melt. Non-linear optical properties of the samples were studied at a wavelength of 1.06 μm for a four-wave mixing geometry and 1.54 μm for a two beam coupling. Maximum 2% diffraction efficiency at 1.06 μm was revealed with the convergence angle of light beams approximating 8" for the grating period of 7 μm. In this case the dynamic grating lifetime was found to be about 0.2 μs. Under beam coupling at ~ 1.5 μm, the conditions of maximum gain (0.7 cm-1) were observed in the experiment for a minimum grating period of 1 μm; and the gain could be slightly enhanced by application of a dc electric field (~ 2 kV/cm) up to 40%.

Paper Details

Date Published: 6 December 2006
PDF: 8 pages
Proc. SPIE 6023, Tenth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals, 60230N (6 December 2006); doi: 10.1117/12.648208
Show Author Affiliations
O. K. Khasanov, Institute of Solid State and Semiconductor Physics (Belarus)
O. M. Fedotova, Institute of Solid State and Semiconductor Physics (Belarus)
V. I. Levchenko, Institute of Solid State and Semiconductor Physics (Belarus)
N. F. Kurilovich, Institute of Solid State and Semiconductor Physics (Belarus)
I. N. Agishev, Belarusian State Univ. (Belarus)
A. L. Tolstik, Belarusian State Univ. (Belarus)
A. E. Korolev, St. Petersburg State Polytechnic Univ. (Russia)
A. V. Koklyushkin, St. Petersburg State Polytechnic Univ. (Russia)


Published in SPIE Proceedings Vol. 6023:
Tenth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals
Gertruda V. Klimusheva; Andrey Iljin; Sergey Al. Kostyukevych, Editor(s)

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