Thermo-optic dispersion formulas for YCOB and GdCOB laser host crystals

Thermo-optic dispersion formulas for YCOB and GdCOB laser host crystals
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YCOB 和 GdCOB 激光主晶体的热光色散公式

DOI:
10.1364/ome.5.001089
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发表时间:
2015-05
期刊:
Thermo-optic dispersion formulas for YCOB and GdCOB laser host crystals
影响因子:
--
通讯作者:
Zhongben Pan
Zhongben Pan
中科院分区:
其他
文献类型:
--
作者:
Pavel Loiko;Xavier Mateos;Yicheng Wang;Zhongben Pan

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报道了单斜氧硼YCOB和GdCOB激光基质晶体的热光系数、dN/dt和光路热系数的各向异性和色散的比较研究。在1μm附近,dNx/dt=-1.2,dNy/dt=-3.7,dnz/dt=-2.5×10−6K−1,dNx/dt=-3.8,dnz/dt=-3.7×10−6K−1。在0.4-2μm的光谱范围内,推导了这些晶体的热光色散公式,并预言了YCOB和GdCOB晶体都存在非热方向。
We report on a comparative study of anisotropy and dispersion of thermo-optic coefficients, dn/dT, and thermal coefficients of the optical path for monoclinic oxoborate YCOB and GdCOB laser host crystals. Near 1 μm, all dn/dT coefficients are found to be negative: dnX/dT = –1.2, dnY/dT = –3.7 and dnZ/dT = –2.5 × 10−6 K−1 for YCOB, dnX/dT = –3.8, dnY/dT = –4.8 and dnZ/dT = –3.7 × 10−6 K−1 for GdCOB. Thermo-optic dispersion formulas are derived for these crystals in the spectral range of 0.4–2 μm. The existence of athermal directions is predicted for both YCOB and GdCOB.
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