S. G. Grechin, P. P. Nikolaev, A. A. Ionin, I. O. Kinyaevsky, Yu. M. Andreev, “BaGa2GeS6 and BaGa2GeSe6 crystals for nonlinear optical frequency conversion”, Kvantovaya Elektronika, 2020, Volume 50, Number 8,Pages 782

This article is cited in 5 papers

Nonlinear optical phenomena

BaGa₂GeS₆ and BaGa₂GeSe₆ crystals for nonlinear optical frequency conversion

S. G. Grechin^a, P. P. Nikolaev^b, A. A. Ionin^c, I. O. Kinyaevsky^c, Yu. M. Andreev^d

^a Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
^b LLC Neofotonika, St. Petersburg, Russia
^c P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow
^d Institute of Monitoring of Climatic and Ecological Systems, Siberian Branch of the Russian Academy of Science, Tomsk

Abstract: We analyse the functional capabilities of new crystals, BaGa₂GeS₆ (BGGS) and BaGa₂GeSe₆ (BGGSe), which are used for nonlinear optical frequency conversion in their transparency range. The wavelengths at which maximum conversion efficiencies can be obtained and the tuning range for difference-frequency generation are found. It is shown that there are wavelength combinations at which the effective nonlinearity coefficient varies only slightly in a wide frequency band.

Keywords: nonlinear crystals, BaGa₂GeS₆, BaGa₂GeSe₆, frequency conversion.

Received: 29.11.2019