Preprint Article Version 1 This version is not peer-reviewed

Crystal Growth of LiNa5Mo9O30 Crystals of High Optical Quality

Version 1 : Received: 17 August 2024 / Approved: 19 August 2024 / Online: 19 August 2024 (16:43:53 CEST)

How to cite: Khokhlov, N.; Grishchenko, I.; Shevelkina, E.; Bindyug, D.; Barkanova, E.; Denisov, D.; Demushkin, D.; Telegen, I.; Yezhikova, E.; Avetissov, I.; Avetisov, R.; Konyashkin, A.; Ryabushkin, O. Crystal Growth of LiNa5Mo9O30 Crystals of High Optical Quality. Preprints 2024, 2024081377. https://doi.org/10.20944/preprints202408.1377.v1 Khokhlov, N.; Grishchenko, I.; Shevelkina, E.; Bindyug, D.; Barkanova, E.; Denisov, D.; Demushkin, D.; Telegen, I.; Yezhikova, E.; Avetissov, I.; Avetisov, R.; Konyashkin, A.; Ryabushkin, O. Crystal Growth of LiNa5Mo9O30 Crystals of High Optical Quality. Preprints 2024, 2024081377. https://doi.org/10.20944/preprints202408.1377.v1

Abstract

The bulk LiNa5Mo9O30 (LNM) crystals were successfully grown in the [010] and [001] directions without internal inclusions and cracks by the Czochralskii method with low temperature gradient. The crystal grown in the [010] direction showed a tendency to twinning. The crystal grown in the [001] direction demonstrated high structural perfection (FWHM=13'') for the (001) plane and high optical quality Δn≈210-5. The laser induced damage threshold was measured along a, b and c axes and was 15.7, 27.0 and 27.5 J/cm2 respectively. The thermo-optical coefficient dn/dT was measured for the main crystallographic axes, which was -5.7510-6, -2.0210-5 and 3.6510-6 K-1 along the a, b and c axes, respectively. The second harmonic generation (SHG) is conducted in crystalline LNM sample. The maximum efficiency value of 3.5% at pump power of 12 W had been achieved.

Keywords

crystal growth; Czochralskii method; lithium-sodium-molybdate; nonlinear optic crystal; second harmonic generation

Subject

Chemistry and Materials Science, Materials Science and Technology

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