Инд. авторы:	Smetanin S.N., Jelínek M., Kubeček V., Kurus A.F., Vedenyapin V.N., Lobanov S.I., Isaenko L.I.
Заглавие:	50-μJ level, 20-picosecond, narrowband difference-frequency generation at 4.6, 5.4, 7.5, 9.2, and 10.8 μm in LiGaS2 and LiGaSe2 at Nd:YAG laser pumping and various crystalline Raman laser seedings
Библ. ссылка:	Smetanin S.N., Jelínek M., Kubeček V., Kurus A.F., Vedenyapin V.N., Lobanov S.I., Isaenko L.I. 50-μJ level, 20-picosecond, narrowband difference-frequency generation at 4.6, 5.4, 7.5, 9.2, and 10.8 μm in LiGaS2 and LiGaSe2 at Nd:YAG laser pumping and various crystalline Raman laser seedings // Optical Materials Express. - 2020. - Vol.10. - Iss. 8. - P.1881-1890. - ISSN 2159-3930.
Внешние системы:	DOI: 10.1364/OME.395370; РИНЦ: 45372033; РИНЦ: 45372033; SCOPUS: 2-s2.0-85089662394; WoS: 000558732600014;
Реферат:	eng: A comparative study of picosecond mid-IR difference frequency generation in a wide wavelength range of 4.6-10.8 μm in a simple down-converter based on the 8-mm long, high-damage-threshold crystals of LiGaS2 or LiGaSe2 under the 5-mJ, 20-ps, 1.064-μm Nd:YAG laser pumping and the single-pass crystalline (CaCO3*BaWO4, CVD-diamond) Raman laser seeding was presented. 10-μJ-level*narrowband (<2 cm-1) generation at discrete wavelengths of 4.6, 5.4, 7.5, and 9.2 μm with the optical frequencies equal to the vibrational Raman frequency or its second harmonic of various crystalline Raman seeders was demonstrated. Optimization of the pump spot and mode-matching between the pump and signal spots allowed to increase the output pulse energy up to 50 μJ in the case of LiGaSe2. © 2020.
Ключевые слова:	Wavelength ranges; Second harmonics; Raman frequencies; Optical frequency; Down converters; Difference-frequency generation; Damage threshold; Comparative studies; Selenium compounds; Optical pumping; Neodymium lasers; Neodymium compounds; Lithium compounds; Gallium compounds; Calcium carbonate; Calcite; Yttrium aluminum garnet; Sulfur compounds;
Издано:	2020
Физ. характеристика:	с.1881-1890
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