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Proceedings Paper

Phase matching and optical properties of LiInS2 nonlinear crystal
Author(s): Yuri M. Andreev; Pavel P. Geiko; Lilya G. Geiko; Sergey G. Grechin
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Paper Abstract

Results on investigation of linear and non-linear optical properties, damage threshold and potential efficiencies of biaxial LiInS2 crystal are represented. Transmission range is 0.4 - 12.5 micrometers at the 0.1 level and 0.5 - 11.0 micrometers at the 0.5 level. Typical absorption coefficients are as low as 0,1 - 0,25 cm-1 at the maximum transmission range 1.0 - 8.0 micrometers and 1.1 - 2.3 cm-1 at the CO2 laser wavelengths. Coefficients of second order non-linear susceptibilities are d31 equals 6.2, d32 equals 5.4 and d33 equals 9.8 pm/V, but damage threshold is as high as 120 - 130 MW/sm2 for 36 ns pulses at 9.55 micrometers . The phase-matching is estimated with using of determined Sellmeier coefficients. It is represented in graphic form so as fields of SHG efficiencies. It is shown that LiInS2 can be used in middle IR OPO pumped by Cu-vapor laser, group-velocity phase matching take place in wide spectral range for sum- and difference-frequency generation of visible, near and middle IR lasers including SHG of 3 micrometers Er laser.

Paper Details

Date Published: 26 March 2002
PDF: 6 pages
Proc. SPIE 4747, International Conference on Atomic and Molecular Pulsed Lasers IV, (26 March 2002); doi: 10.1117/12.460151
Show Author Affiliations
Yuri M. Andreev, Institute for Optical Monitoring (Russia)
Pavel P. Geiko, Institute for Optical Monitoring (Russia)
Lilya G. Geiko, Institute for Optical Monitoring (Russia)
Sergey G. Grechin, Bauman Moscow State Technical Univ. (Russia)

Published in SPIE Proceedings Vol. 4747:
International Conference on Atomic and Molecular Pulsed Lasers IV
Victor F. Tarasenko; Georgy V. Mayer; Gueorgii G. Petrash, Editor(s)

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