Recent development of nonlinear optical borate crystals for UV generation
Recent development of nonlinear optical borate crystals for UV generation
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DOI：
10.1016/s0925-3467(01)00194-x
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发表时间：
2002-02
影响因子：
3.9
通讯作者：
Y. Mori;Y. Yap;T. Kamimura;M. Yoshimura;T. Sasaki
中科院分区：
文献类型：
--
作者：
Y. Mori;Y. Yap;T. Kamimura;M. Yoshimura;T. Sasaki
综述了非线性光学（NLO）硼酸盐晶体高功率固态紫外辐射的最新进展。由于 CsLiB6O10(CLBO) 晶体优异的 NLO 性能，此类紫外光源的性能在过去五年中迅速提高。此类紫外光源的性能还取决于 NLO 晶体的可靠性。研究了CsLiB6O10(CLBO)的体激光损伤阈值(LIDT)、位错密度和紫外吸收之间的关系。新开发的合成工艺允许 CLBO 晶体生长，其 LIDT 比传统顶晶溶液生长 (TSSG) 技术生长的晶体高 2.5 倍。与传统 CLBO 相比，高质量 CLBO 具有更低的位错密度和更小的紫外光吸收（λ=266 nm）。位错密度的降低可以抑制紫外光的吸收，有助于增强CLBO对激光损伤的抵抗力，减轻高功率产生紫外光时的热失相，从而增强CLBO产生紫外光的可靠性。
Recent development of high-power solid-state UV radiation by nonlinear optical (NLO) borate crystals is reviewed. The performance of such UV light sources has rapidly improved in the past five years because of the superior NLO properties of CsLiB6O10(CLBO) crystals. The performance of such UV light sources also depends on the reliability of the NLO crystals. The relation between the bulk laser-induced damage threshold (LIDT), dislocation density and UV absorption of CsLiB6O10(CLBO) was investigated. A newly developed synthesis process allows the growth of CLBO crystals with LIDT 2.5-fold higher than those grown by the conventional top-seeded solution growth (TSSG) technique. High-quality CLBO possesses lower dislocation density and smaller absorption of UV light (λ=266 nm ) than conventional CLBO. Reduction of the dislocation density can suppress absorption of UV light that helps to enhance the resistance of CLBO to laser-induced damages, to alleviate thermal dephasing during high-power generation of UV light and thus strengthen the reliability of CLBO for UV light generation.