| Инд. авторы: | Nikolaev N.A., Mamrashev A.A., Andreev Y.M., Ezhov D.M., Lanskii G.V., Lubenko D.M., Kinyaevskii I.O., Solntsev V.P. |
| Заглавие: | Optical Properties and Terahertz Radiation Generation in a LI2B4O7 Crystal |
| Библ. ссылка: | Nikolaev N.A., Mamrashev A.A., Andreev Y.M., Ezhov D.M., Lanskii G.V., Lubenko D.M., Kinyaevskii I.O., Solntsev V.P. Optical Properties and Terahertz Radiation Generation in a LI2B4O7 Crystal // Russian Physics Journal. - 2021. - Vol.63. - Iss. 12. - P.2066-2069. - ISSN 1064-8887. - EISSN 1573-9228. |
| Внешние системы: | DOI: 10.1007/s11182-021-02275-9; WoS: 000639519500001; |
| Реферат: | eng: Spectral dependences of components of the refractive index and absorption coefficient in a Li2B4O7 (LB4) nonlinear crystal are determined in the THz range for the first time. Measurements have been carried out in the 0.15-1.6 THz (180-2000 mu m) spectral range. The measured refractive index components are approximated by the Sellmeier dispersion equations subsequently used to determine the possible interaction types and to calculate the phase-matching angles for THz wave generation at the difference frequency between a Nd:YAG laser and a tunable laser source with a close wavelength. The efficiency of the process is estimated.
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| Ключевые слова: | absorption coefficient; refractive index; millimeter waves; nonlinear crystal; Li2B4O7; difference frequency generation; |
| Издано: | 2021 |
| Физ. характеристика: | с.2066-2069 |