TY - JOUR

T1 - Selection of Optimal Phase Matching Conditions for Semiconductor Nonlinear Crystals Under Cascade Pumping at 2 μm

AU - Boyko, A. A.

AU - Kostyukova, N. Yu

AU - Erushin, E. Yu

AU - Miroshnichenko, I. B.

AU - Kolker, D. B.

N1 - The study was carried out with the financial support of the Russian Foundation for Basic Research within the framework of the scientific project No. 19-32-60055 and the state assignment of the Novosibirsk State University No. FSUS -2020-0036, as well as the Russian Foundation for Basic Research and the Government of the Novosibirsk Region within the framework of the scientific project No. 20-42-543004. The research was carried out with the support of a grant under the Decree of the Government of the Russian Federation No. 220 dated April 09, 2010 (Agreement No. 075-15-2021-615 dated June 04, 2021). Publisher Copyright: © 2021, Springer Science+Business Media, LLC, part of Springer Nature.

PY - 2021/12

Y1 - 2021/12

N2 - Model studies of the optimal phase matching conditions are performed for the implementation of an optical parametric oscillator (OPO) in the mid-infrared range (IR) based on promising nonlinear crystals, such as: cadmium selenide CdSe, barium selenogallates BaGa4Se7 and BaGa2GeSe6, mercury thiogallate HgGa2S4 and zinc germanium phosphide ZnGeP2 (ZGP). To pump OPOs, it is necessary to use a laser source with a wavelength in the spectral range of 1.9–2.2 μm, since for the combination of physical properties of the listed above nonlinear crystals, it is optimal for achieving the maximum efficiency of parametric frequency conversion. Despite the high values of the effective nonlinear susceptibility and thermal conductivity, the transparency range of the ZGP crystal in the mid-IR range does not exceed 10.4 μm, and the achieved OPO generation wavelength range does not exceed 9 μm in the nanosecond mode. The HgGa2S4 and BaGa4Se7 crystals have lower values of nonlinear coefficients and thermal conductivity and wider transparency ranges and, as a consequence, make it possible to obtain lasing up to a wavelength of 12 μm. When using a BaGa4Se7 crystal, the lasing range can be extended up to 17 μm. The CdSe crystal has the widest transparency range. However, its other parameters do not allow solving the set tasks.

AB - Model studies of the optimal phase matching conditions are performed for the implementation of an optical parametric oscillator (OPO) in the mid-infrared range (IR) based on promising nonlinear crystals, such as: cadmium selenide CdSe, barium selenogallates BaGa4Se7 and BaGa2GeSe6, mercury thiogallate HgGa2S4 and zinc germanium phosphide ZnGeP2 (ZGP). To pump OPOs, it is necessary to use a laser source with a wavelength in the spectral range of 1.9–2.2 μm, since for the combination of physical properties of the listed above nonlinear crystals, it is optimal for achieving the maximum efficiency of parametric frequency conversion. Despite the high values of the effective nonlinear susceptibility and thermal conductivity, the transparency range of the ZGP crystal in the mid-IR range does not exceed 10.4 μm, and the achieved OPO generation wavelength range does not exceed 9 μm in the nanosecond mode. The HgGa2S4 and BaGa4Se7 crystals have lower values of nonlinear coefficients and thermal conductivity and wider transparency ranges and, as a consequence, make it possible to obtain lasing up to a wavelength of 12 μm. When using a BaGa4Se7 crystal, the lasing range can be extended up to 17 μm. The CdSe crystal has the widest transparency range. However, its other parameters do not allow solving the set tasks.

KW - chalcogenide

KW - mid-infrared range

KW - nonlinear crystal

KW - optical parametric oscillator

KW - optoacoustic spectroscopy

KW - phase matching

UR - http://www.scopus.com/inward/record.url?scp=85122149970&partnerID=8YFLogxK

U2 - 10.1007/s11182-021-02485-1

DO - 10.1007/s11182-021-02485-1

M3 - Article

AN - SCOPUS:85122149970

VL - 64

SP - 1517

EP - 1521

JO - Russian Physics Journal

JF - Russian Physics Journal

SN - 1064-8887

IS - 8

ER -