New optical nonlinear crystallized glasses and YAG laser-induced crystalline dot formation in rare-earth bismuth borate system
New optical nonlinear crystallized glasses and YAG laser-induced crystalline dot formation in rare-earth bismuth borate system
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稀土硼酸铋体系中新型光学非线性结晶玻璃和 YAG 激光诱导晶点形成
DOI：
10.1016/s0925-3467(02)00027-7
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发表时间：
2002
影响因子：
3.9
通讯作者：
T. Komatsu
中科院分区：
文献类型：
--
作者：
T. Honma;Y. Benino;T. Fujiwara;R. Sato;T. Komatsu
在Ln2O3-Bi2O3-B2O3 （Ln=La, Sm, Gd）体系中成功制备了新型光学非线性透明表面结晶玻璃。从Maker条纹测量中证实了表层晶相的二次谐波（SH）的产生。结果表明，通过ln2o3 - bi2o3 - b2o3玻璃结晶析出的光学非线性晶体可能是BixLn1 - xbo3亚稳相，其中bibo3中的Bi3+离子被Ln3+离子取代。与厚度为0.6 mm的z -切割α-石英相比，晶面厚度约为5 μm， SH强度为0.02。在12.5Sm2O3·30Bi2O3·57.5 b2o3玻璃中，用波长为1064 nm的连续YAG激光（0.6 W和0.7 W，照射时间为1 ~ 240 s），形成了直径为5 ~ 65 μm的晶点，这些晶点产生了光学SH波。这是YAG激光在含铋玻璃中形成光学非线性晶点的首次发现。
New optical nonlinear transparent surface crystallized glasses have been successfully fabricated in the system of Ln2O3–Bi2O3–B2O3(Ln=La, Sm, Gd). The second harmonic (SH) generation from the crystalline phases at the surface layers has been confirmed from Maker fringe measurements. It is suggested that the optical nonlinear crystals precipitated through the crystallization of Ln2O3–Bi2O3–B2O3glasses would be new metastable BixLn1−xBO3phases in which Bi3+ions in BiBO3are substituted by Ln3+ions. The thickness of crystallized surface was approximately 5 μm and SH intensity was 0.02 compared with that of the Z-cut α-quartz with a thickness of 0.6 mm. In 12.5Sm2O3·30Bi2O3·57.5B2O3glass, the crystalline dots with diameters of 5–65 μm are formed by the irradiation of CW YAG laser with a wavelength of 1064 nm (at 0.6 and 0.7 W, for 1–240 s), and it is found that these crystalline dots generate optical SH waves. This is the first finding on optical nonlinear crystalline dot formation by YAG laser irradiation in bismuth-containing glasses.
影响因子：
3.2
作者：
Takahashi, Y;Benino, Y;Komatsu, T
通讯作者：
Komatsu, T