Numerical study of multiline CO laser frequency conversion in a ZnGeP2 crystal to the THz range Y. M. Andreev, A. A. Ionin, I. O. Kinyaevskiy, Y. M. Klimachev
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ArticleSubject(s): терагерцовый диапазон частот | CO-лазеры | численное моделированиеGenre/Form: статьи в журналах Online resources: Click here to access online
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Bulletin of the Russian Academy of Sciences: Physics Vol. 83, № 3. P. 237-241Abstract: A numerical simulation was performed for frequency conversion of multiline CO laser radiation to the THz range by difference frequency generation in a ZnGeP2 crystal. It was shown that the difference frequencies spectrum can be tuned in the wavelength interval of 70–1300 μm by tuning the phase-matching angle in the range of 11° to 55°. The maximal peak power of difference frequencies radiation (integral over the spectrum) was ~0.23 W at 45° phase-matching angle, which corresponds to a peak power conversion efficiency of 6 × 10−5.
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A numerical simulation was performed for frequency conversion of multiline CO laser radiation to the THz range by difference frequency generation in a ZnGeP2 crystal. It was shown that the difference frequencies spectrum can be tuned in the wavelength interval of 70–1300 μm by tuning the phase-matching angle in the range of 11° to 55°. The maximal peak power of difference frequencies radiation (integral over the spectrum) was ~0.23 W at 45° phase-matching angle, which corresponds to a peak power conversion efficiency of 6 × 10−5.
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