Исследование ГВГ в порошках нелинейных кристаллов под действием ФС излучения Д. М. Ежов
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ArticleOther title: Study on powder SHG of nlo crystals under FS excitation [Parallel title]Subject(s): нелинейные кристаллы | сульфид галлия | Куртца-Перри метод | экспериментальные исследования | лазерные излучения | генерация второй гармоникиGenre/Form: статьи в сборниках Online resources: Click here to access online
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Перспективы развития фундаментальных наук. Т. 7 : сборник научных трудов XV Международной конференции студентов, аспирантов и молодых ученых, 24-27 апреля 2018 г Т. 7 : IT-технологии и электроника. С. 78-80Abstract: Results on comparative study of SHG in powder of promising y-Ga2Ss crystal are reported. Powder with particle size 50-100 pm were tested in comparison with powders of well-known LBO, BBO, KDP and LN crystals under the pumping by 140 fs 80MHz Ti:Sa laser with a pumping wavelengths from 850 nm to 1050 nm. It was found, that relatively wide bandgap of Ga2Ss decreases the efficiency of SHG while pumping wavelength is less than 950 nm. The intensity of powder SHG in Ga2Ss under the 850 nm pumping is 5.5 times lower than intensity of SHG in powder of BBO crystal. Under the 1050 nm pumping, it 1.3 and 4 times lower than that in BBO and LN powders, and 2.2 and 3.1 times higher than that in LBO and KDP powders.
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Results on comparative study of SHG in powder of promising y-Ga2Ss crystal are reported. Powder with particle size 50-100 pm were tested in comparison with powders of well-known LBO, BBO, KDP and LN crystals under the pumping by 140 fs 80MHz Ti:Sa laser with a pumping wavelengths from 850 nm to 1050 nm. It was found, that relatively wide bandgap of Ga2Ss decreases the efficiency of SHG while pumping wavelength is less than 950 nm. The intensity of powder SHG in Ga2Ss under the 850 nm pumping is 5.5 times lower than intensity of SHG in powder of BBO crystal. Under the 1050 nm pumping, it 1.3 and 4 times lower than that in BBO and LN powders, and 2.2 and 3.1 times higher than that in LBO and KDP powders.
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