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10-µJ few-cycle 12-µm source based on difference-frequency generation driven by a 1-kHz mid-wave infrared OPCPA
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SYSNO ASEP 0558402 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title 10-µJ few-cycle 12-µm source based on difference-frequency generation driven by a 1-kHz mid-wave infrared OPCPA Author(s) Duda, Martin (FZU-D) ORCID
von Grafenstein, L. (DE)
Bock, M. (DE)
Ueberschaer, D. (DE)
Fuertjes, P. (DE)
Roškot, Lukáš (FZU-D) ORCID
Smrž, Martin (FZU-D) RID, ORCID
Novák, Ondřej (FZU-D) RID, ORCID
Griebner, U. (DE)Number of authors 9 Source Title Optics Letters. - : Optical Society of America - ISSN 0146-9592
Roč. 47, č. 11 (2022), s. 2891-2894Number of pages 4 s. Language eng - English Country US - United States Keywords DFG ; non-linear crystals ; high-energy lasers ; ultrashort pulses lasers 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 Open access with time embargo (01.06.2023) Institutional support FZU-D - RVO:68378271 UT WOS 000807404900071 EID SCOPUS 85131239931 DOI 10.1364/OL.456971 Annotation We report on high-energy, few-cycle pulse generation in the long-wave infrared spectral region via difference-frequency generation (DFG) in GaSe and AgGaSe2 nonlinear crystals. The DFG is driven by the signal at 3.5 mu m and idler at 5 mu m of a high-power mid-wave infrared optical parametric chirped pulse amplification (OPCPA) system operating at a 1-kHz repetition rate. The DFG pulses contain up to 17 mu J of energy and cover a spectrum from 8.5 mu m to 14.5 mu m. They are generated with a conversion efficiency of 2.1 %. Compression results in 10.2-mu J pulses with sub-150-fs duration, corresponding to less than four optical cycles. (C) 2022 Optica Publishing Group 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/OL.456971
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