Analysis of broadband mid-infrared optical parametric amplification based on LiGaS.sub.2./sub., LiGaSe.sub.2./sub., LiInS.sub.2./sub., and LiInSe.sub.2./sub. crystals

0556886 - FZÚ 2023 RIV US eng J - Článek v odborném periodiku
Zhou, Lu - Novák, Ondřej - Smrž, Martin - Mocek, Tomáš
Analysis of broadband mid-infrared optical parametric amplification based on LiGaS₂, LiGaSe₂, LiInS₂, and LiInSe₂ crystals.
Journal of the Optical Society of America. B. Roč. 39, č. 4 (2022), s. 1174-1185. ISSN 0740-3224. E-ISSN 1520-8540
Grant CEP: GA MŠMT EF15_006/0000674
GRANT EU: European Commission(XE) 739573 - HiLASE CoE; European Commission(XE) 871124 - LASERLAB-EUROPE
Grant ostatní: OP VVV - HiLASE-CoE(XE) CZ.02.1.01/0.0/0.0/15_006/0000674
Institucionální podpora: RVO:68378271
Klíčová slova: optical amplifiers * amplifiers * mid-IR ultrashort pulses non-oxide crystals
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 1.9, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1364/JOSAB.454372

Optical parametric amplification (OPA) is a powerful technique for generating mid-IR ultrashort pulses. Determination of proper OPA conditions is based on the study of phase-matching curves. In this paper, we provide this study for LiGaS2, LiGaSe2, LiInS2, and LiInSe2 non-oxide crystals in a type I arrangement. Phase-matching characteristics and gain spectra were calculated when pumped at wavelengths of 1.03, 1.064, 1.94, and 2.1 µm. By pumping few-millimeter-long Li-based crystals at 10 GW/cm2 pump intensity, the signal gain spectrum bandwidths from a few tens of nanometers to a few thousands of nanometers can be obtained. All these crystals can display a broad bandwidth signal amplification, allowing the generation of broadband mid-IR ultrashort pulses.
Trvalý link: http://hdl.handle.net/11104/0331004