V. V. Badikov, D. V. Badikov, G. S. Shevyrdyaeva, V. B. Laptev, A. A. Melnikov, S. V. Chekalin, “Optical and generation characteristics of new nonlinear Ba2Ga8GeS16 and Ba2Ga8(GeSe2)S14 crystals for the mid-IR range”, Kvantovaya Elektronika, 2022, Volume 52, Number 3,Pages 296

This article is cited in 4 papers

Modern nonlinear optics

Optical and generation characteristics of new nonlinear Ba₂Ga₈GeS₁₆ and Ba₂Ga₈(GeSe₂)S₁₄ crystals for the mid-IR range

V. V. Badikov^a, D. V. Badikov^a, G. S. Shevyrdyaeva^a, V. B. Laptev^b, A. A. Melnikov^b, S. V. Chekalin^b

^a Kuban State University, Krasnodar
^b Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow

Abstract: Ba₂Ga₈GeS₁₆ and Ba₂Ga₈(GeSe₂)S₁₄ single crystals oflarge size and good optical quality have been grown for the first time. Their linear optical characteristics – transmission spectra in the range of 0.3 – 25 mm, dispersion of principal refractive indices, and birefringence – have been measured. Irradiation of the crystals by 100-fs laser pulses with a wavelength of 8.3 mm initiated secondharmonic generation with an efficiency comparable with that obtained for the AgGaS₂ crystal.

Keywords: nonlinear optical crystals, second harmonic generation.

Received: 26.10.2021
Revised: 07.12.2021
Accepted: 07.12.2021