Patterning and morphology of nonlinear optical GdxBi1-xBO3 crystals in CuO-doped glass by YAG laser irradiation
Patterning and morphology of nonlinear optical GdxBi1-xBO3 crystals in CuO-doped glass by YAG laser irradiation
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YAG 激光照射 CuO 掺杂玻璃中非线性光学 GdxBi1-xBO3 晶体的图案化和形貌
DOI：
10.1007/s00339-007-4200-9
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
T. Komatsu
中科院分区：
文献类型：
--
作者：
K. Koshiba;T. Honma;Y. Benino;T. Komatsu
通过波长为 1064 nm 的热辅助 (200 °C) Nd:YAG 激光照射，在 CuO 掺杂的 Gd2O3-Bi2O3-B2O3 玻璃表面形成由非线性光学 GdxBi1-xBO3 晶体组成的点和线图案，其中 Cu2+ 吸收的激光能量转化为周围 Cu2+ 的局部加热。通过共焦扫描激光显微镜观察和偏振微拉曼散射光谱阐明了图案线中晶体的表面形态和取向。通过功率为 0.79 W、扫描速度为 60 μm/s 的激光照射，形成具有周期性凸块的晶体线（即梯形线），并提出了线中 GdxBi1-xBO3 晶体的取向。本研究表明，Cu2+ 与 λ=1064 nm 连续波 Nd:YAG 激光的组合可有效诱导氧化物玻璃结晶。还讨论了激光诱导玻璃结晶的机制。
Dots and lines consisting of nonlinear optical GdxBi1-xBO3crystals were patterned on the surface of CuO-doped Gd2O3-Bi2O3-B2O3glass by heat-assisted (200 °C) Nd:YAG laser irradiations with a wavelength of λ=1064 nm, where the laser energy absorbed by Cu2+is converted to the local heating of the surrounding Cu2+. The surface morphology and orientation of crystals in the patterned lines were clarified from confocal scanning laser microscope observations and polarized micro-Raman scattering spectra. Crystal lines with periodic bumps (i.e., ladder-shape like lines) were patterned by laser irradiations with a power of 0.79 W and a scanning speed of 60 μm/s, and the orientation of GdxBi1-xBO3crystals in the lines was proposed. The present study demonstrates that the combination of Cu2+and continuous wave Nd:YAG laser with λ=1064 nm is effective in inducting crystallization of oxide glasses. The mechanism of laser-induced crystallization in glass has also been discussed.
影响因子：
4
作者：
Honma, T;Benino, Y;Sato, R
通讯作者：
Sato, R