Detailed study on optical properties of Li2B4O7 for down-conversion to millimeter waves D. M. Ezhov, N. A. Nikolaev, A. A. Mamrashev, Y. M. Andreev
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ArticleContent type: Текст Media type: электронный Subject(s): тетраборат лития | фемтосекундные импульсы | генерация разностной частоты | фазовый синхронизм | миллиметровый диапазонGenre/Form: статьи в журналах Online resources: Click here to access online
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Proceedings of SPIE Vol. 12086 : XV International Conference on Pulsed Lasers and Laser Applications, 2021, Tomsk, Russian Federation. P. 1208626-1-1208626-6Abstract: Optical properties of single axes Li2B4O7 (LB4) crystal are defined at room temperature in the spectral range 0.03˗0.5 THz. Dispersion of the refractive index components are approximated in the form of Sellmeier equations. Dispersion properties were used to determine phase-matching conditions for THz wave generation by collinear difference frequency generation processes. To the damage threshold under the pump by train of hundreds of 60 fs pulses of Ti:sapphire laser operating at 950 nm is found to be 250 TW/cm2, as well as the coherence length and efficiency of all possible types of three wave interactions are defined.
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Optical properties of single axes Li2B4O7 (LB4) crystal are defined at room temperature in the spectral range 0.03˗0.5 THz. Dispersion of the refractive index components are approximated in the form of Sellmeier equations. Dispersion properties were used to determine phase-matching conditions for THz wave generation by collinear difference frequency generation processes. To the damage threshold under the pump by train of hundreds of 60 fs pulses of Ti:sapphire laser operating at 950 nm is found to be 250 TW/cm2, as well as the coherence length and efficiency of all possible types of three wave interactions are defined.
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