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>Temperature dispersions of refractive indices and absorption coefficients of KNbO3 and LiNbO3 crystals in the THz frequency range
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Temperature dispersions of refractive indices and absorption coefficients of KNbO3 and LiNbO3 crystals in the THz frequency range
The temperature dispersions of refractive indices and absorption coefficients in the terahertz range for the spectra of Er3+-, Yb3+-, and Cr3+ -activated potassium niobate and lithium niobate crystals, grown by the Czochralski method with liquid recharge, are considered. A strong temperature dependence for the refractive index of the LiNbO3:Er,Yb crystal was found-3.5 x 10(-3) K-1 .A minimum temperature dependence of 0.2 x 10(-3) K-1 for the refractive index of the LiNbO3:Cr crystal was also obtained . (C) 2020 Optical Society of America
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机译：考虑了直拉法在液体补给下生长的Er3+-、Yb3+-和Cr3+活化铌酸钾和铌酸锂晶体的光谱在太赫兹范围内的折射率和吸收系数的温度扩散。发现LiNbO3：Er，Yb晶体的折射率与温度有较强的依赖性-3.5 x 10（-3） K-1。LiNbO3：Cr晶体的折射率最小温度依赖性为0.2 x 10（-3） K-1。（C） 2020 年美国光学学会
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