Growth and properties of LiGaX2 (X = S, Se, Te) single crystals for nonlinear optical applications in the mid-IR

被引：217

作者：

Isaenko, L

Yelisseyev, A

Lobanov, S

Titov, A

Petrov, V

Zondy, JJ

Krinitsin, P

Merkulov, A

Vedenyapin, V

Smirnova, J

机构：

[1] Design & Technol Inst Monocrystals, Novosibirsk 630058, Russia

[2] Max Born Inst Nonlinear Opt & Ultrafast Spect, D-12489 Berlin, Germany

[3] Observ Paris, LPTF, BNM, F-75014 Paris, France

来源：

CRYSTAL RESEARCH AND TECHNOLOGY | 2003年 / 38卷 / 3-5期

关键词：

crystal growth; light absorption; refractive indices; phase-matching; Li-containing ternary compounds;

D O I：

10.1002/crat.200310047

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Single crystals. LiGaX2 (X=S, Se, Te) of optical quality were grown, with transparency ranges at 5 cm(-1) absorption level of 0.32-11.6 mum, 0.37-13.2 mum and 0.54-14.2 mum, respectively. The first two, LiGaS2 and LiGaSe2, have a wurtzite-type structure whereas LiGaTe2 is tetragonal (chalcopyrite lattice). The three refractive indices were measured in the whole transparency ranges of LiGaS2 and LiGaSe2 and n(a) and n(c) were found to be very close (quasi-uniaxial optical anisotropy) with a crosspoint at 6.5 mum (LiGaS2) and 8 mum (LiGaSe2). Sellmeier equations were fitted and phase-matching conditions for second harmonic generation (SHG) were calculated: the 1.467-11.72 mum spectral range for the fundamental is covered by LiGaS2 and LiGaSe2.

引用

页码：379 / 387

页数：9

共 14 条

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