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New optical nonlinear crystallized glasses and YAG laser-induced crystalline dot formation in rare-earth bismuth borate system

机译:稀土硼酸铋体系中新型光学非线性结晶玻璃及YAG激光诱导的晶点形成

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摘要

New optical nonlinear transparent surface crystallized glasses have been successfully fabricated in the system of Ln_2O_3-Bi_2O_3-B_2O_3 (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 Ln_2O_3-Bi_2O_3-B_2O_3 glasses would be new metastable Bi_xLn_(1-x) phases in which Bi~(3+) ions in BiBO_3 are substituted by Ln~(3+) 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.
机译:在Ln_2O_3-Bi_2O_3-B_2O_3(Ln = La,Sm,Gd)体系中,已经成功制备了新型光学非线性透明表面晶化玻璃。通过Maker条纹测量已确认了表面层晶相产生的二次谐波(SH)。认为通过Ln_2O_3-Bi_2O_3-B_2O_3玻璃的结晶析出的光学非线性晶体将是新的亚稳Bi_xLn_(1-x)相,其中BiBO_3中的Bi〜(3+)离子被Ln〜(3+)取代离子。与Z切割的α-石英的0.6mm的厚度相比,结晶表面的厚度约为5μm,SH强度为0.02。

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