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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
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SYSNO ASEP 0556886 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Analysis of broadband mid-infrared optical parametric amplification based on LiGaS2, LiGaSe2, LiInS2, and LiInSe2 crystals Author(s) Zhou, Lu (FZU-D)
Novák, Ondřej (FZU-D) RID, ORCID
Smrž, Martin (FZU-D) RID, ORCID
Mocek, Tomáš (FZU-D) RID, ORCID, SAINumber of authors 4 Source Title Journal of the Optical Society of America. B. - : Optical Society of America - ISSN 0740-3224
Roč. 39, č. 4 (2022), s. 1174-1185Number of pages 12 s. Language eng - English Country US - United States Keywords optical amplifiers ; amplifiers ; mid-IR ultrashort pulses non-oxide crystals Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects EF15_006/0000674 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000778793500030 EID SCOPUS 85127590339 DOI 10.1364/JOSAB.454372 Annotation 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. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://doi.org/10.1364/JOSAB.454372
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