Parametric Frequency Converters Based on New Nonlinear Crystals |
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Authors: | Kabanov M V Andreev Yu M Badikov V V Geiko P P |
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Institution: | (1) Institute of Optical Monitoring of the Siberian Branch of the Russian Academy of Sciences, Russia;(2) Tomsk State University, Russia;(3) Kuban' State University, Russia |
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Abstract: | Results of investigations into the physical properties of a number of new nonlinear crystals are presented. The parameters of frequency converters manufactured on their basis are compared, and second-harmonic generation of CO2 lasers first excited by frequency conversion in LiInSe2, AgGa1– x
InxSe2, AgxGaxGexS2(1 + x), and Hg1–x
CdxGa2S4 crystals is investigated. The superiority of HgGa2S4, Hg1–x
CdxGa2S4, and AgGa1–x
InxSe2 over the well-known crystals has been demonstrated for frequency conversion both within the middle-IR range and from the visible range to the middle-IR range. Advantages of LiInSe2 and AgGa1–x
InxSe2 crystals are demonstrated for the direct frequency conversion of femtosecond laser radiation to the middle-IR range compared to the cascade frequency conversion and direct frequency conversion in LiInS2 crystals. |
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