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

L. Isaenko; A. Yelisseyev; S. Lobanov; A. Titov; V. Petrov; J. J. Zondy; P. Krinitsin; A. Merkulov; V. Vedenyapin; J. Smirnova

doi:10.1002/crat.200310047

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

L. Isaenko, A. Yelisseyev, S. Lobanov, A. Titov, V. Petrov, J. J. Zondy, P. Krinitsin, A. Merkulov, V. Vedenyapin, J. Smirnova

Research output: Contribution to journal › Article › peer-review

176 Citations (Scopus)

Abstract

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 μm, 0.37-13.2 μm and 0.54-14.2 μm, 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 μm (LiGaS₂) and 8 μm (LiGaSe₂). Sellmeier equations were fitted and phase-matching conditions for second harmonic generation (SHG) were calculated: the 1.467-11.72 μm spectral range for the fundamental is covered by LiGaS₂ and LiGaSe₂.

Original language	English
Pages (from-to)	379-387
Number of pages	9
Journal	Crystal Research and Technology
Volume	38
Issue number	3-5
DOIs	https://doi.org/10.1002/crat.200310047
Publication status	Published - Jan 1 2003
Externally published	Yes

Keywords

Crystal growth
Li-containing ternary compounds
Light absorption
Phase-matching
Refractive indices

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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Growth and properties of LiGaX₂ (X = S, Se, Te) single crystals for nonlinear optical applications in the mid-IR. / Isaenko, L.; Yelisseyev, A.; Lobanov, S.; Titov, A.; Petrov, V.; Zondy, J. J.; Krinitsin, P.; Merkulov, A.; Vedenyapin, V.; Smirnova, J.

In: Crystal Research and Technology, Vol. 38, No. 3-5, 01.01.2003, p. 379-387.

Research output: Contribution to journal › Article › peer-review

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abstract = "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 μm, 0.37-13.2 μm and 0.54-14.2 μm, 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 na and nc were found to be very close (quasi-uniaxial optical anisotropy) with a crosspoint at 6.5 μm (LiGaS2) and 8 μm (LiGaSe2). Sellmeier equations were fitted and phase-matching conditions for second harmonic generation (SHG) were calculated: the 1.467-11.72 μm spectral range for the fundamental is covered by LiGaS2 and LiGaSe2.",

keywords = "Crystal growth, Li-containing ternary compounds, Light absorption, Phase-matching, Refractive indices",

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AU - Yelisseyev, A.

AU - Lobanov, S.

AU - Titov, A.

AU - Petrov, V.

AU - Zondy, J. J.

AU - Krinitsin, P.

AU - Merkulov, A.

AU - Vedenyapin, V.

AU - Smirnova, J.

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N2 - 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 μm, 0.37-13.2 μm and 0.54-14.2 μm, 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 na and nc were found to be very close (quasi-uniaxial optical anisotropy) with a crosspoint at 6.5 μm (LiGaS2) and 8 μm (LiGaSe2). Sellmeier equations were fitted and phase-matching conditions for second harmonic generation (SHG) were calculated: the 1.467-11.72 μm spectral range for the fundamental is covered by LiGaS2 and LiGaSe2.

AB - 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 μm, 0.37-13.2 μm and 0.54-14.2 μm, 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 na and nc were found to be very close (quasi-uniaxial optical anisotropy) with a crosspoint at 6.5 μm (LiGaS2) and 8 μm (LiGaSe2). Sellmeier equations were fitted and phase-matching conditions for second harmonic generation (SHG) were calculated: the 1.467-11.72 μm spectral range for the fundamental is covered by LiGaS2 and LiGaSe2.

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KW - Phase-matching

KW - Refractive indices

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