Electro-optic, thermo-optic, and dielectric properties of YCOB and Nd :YCOB crystals : comparative study
Electro-optic, thermo-optic, and dielectric properties of YCOB and Nd :YCOB crystals : comparative study
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DOI：
10.1364/josab.22.000398
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发表时间：
2005-02
影响因子：
1.9
通讯作者：
M. Abarkan;J. Salvestrini;D. Pelenc;M. Fontana
中科院分区：
文献类型：
--
作者：
M. Abarkan;J. Salvestrini;D. Pelenc;M. Fontana
测定了纯YCa_4 O（BO_3）_3晶体和掺Nd晶体的电光系数、热光系数和介电系数。EO系数的频率和波长依赖性分别在0-150 MHz和0.5-1.3 µm范围内确定。的EO和介电性能的频率依赖性的分析提供了整个系数的非钳位和钳位值。看来，声学的EO和介电性能的贡献非常低。发现两种晶体的性质的小差异归因于Nd掺杂离子。应注意，令人惊讶地，发现双折射率（n_X-n_Y）在20-40°C范围内与温度无关。
The electro-optic (EO), thermo-optic, and dielectric coefficients of pure as well as Nd-doped YCa4O(BO3)3 crystals are determined. The frequency and wavelength dependence of the EO coefficients were determined in the 0-150 MHz and 0.5-1.3 µm ranges, respectively. The analysis of the frequency dependences of both EO and dielectric properties provides the unclamped and clamped values of the whole set of coefficients. It appears that the acoustic contributions to the EO and dielectric properties are very low. Small differences in the properties found for the two crystals are attributed to the Nd doping ions. It is to be noticed that, surprisingly, the birefringence (n_X - n_Y) was found to be independent of the temperature in the range 20-40°C.