Phase matching in RT KTP crystal for down-conversion into the THz range

Phase matching in RT KTP crystal for down-conversion into the THz range

Dispersion of refractive index and absorption coefficients in flux-grown high-resistivity KTiOPO4 crystals between 0.2-2.5 THz are verified at room temperature by a THz-TDS. Measured dispersion components n x , n y and n z are approximated for the first time in the form of Sellmeier equations. Phase...

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Bibliographic Details
Published in:Laser physics letters Vol. 15, № 7. P. 075401 (1-4)
Other Authors: Huang, Zhiming, Nikolaev, Nazar A., Mamrashev, Alexander A., Antsygin, Valery D., Potaturkin, O. I., Meshalkin, Arkady B., Kaplun, A. B., Lanskii, Grigory V., Andreev, Yury M. 1946-, Huang, Jingguo, Ezhov, Dmitry M., Svetlichnyi, Valerii A.
Format: Article
Language:English
Subjects:
нелинейно-оптические кристаллы
фазовое согласование
дисперсия
Селмейера уравнения
статьи в журналах
Online Access:http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000646053
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Summary:Dispersion of refractive index and absorption coefficients in flux-grown high-resistivity KTiOPO4 crystals between 0.2-2.5 THz are verified at room temperature by a THz-TDS. Measured dispersion components n x , n y and n z are approximated for the first time in the form of Sellmeier equations. Phase matching for down-conversion into the THz range under a visible and near IR pump is found possible only in the principle plane by and types of three-wave interactions. Low frequency THz generation is favorable due to the low absorption coefficient down to 0.2 cm−1, below 0.5 THz.
Bibliography:Библиогр.: 15 назв.
ISSN:1612-2011

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