Authors: K Koshiba T Honma Y Benino T Komatsu
Publish Date: 2007/07/26
Volume: 89, Issue: 4, Pages: 981-
Abstract
Dots and lines consisting of nonlinear optical GdxBi1xBO3 crystals were patterned on the surface of CuOdoped Gd2O3Bi2O3B2O3 glass by heatassisted 200 °C NdYAG 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 microRaman scattering spectra Crystal lines with periodic bumps ie laddershape like lines were patterned by laser irradiations with a power of 079 W and a scanning speed of 60 μm/s and the orientation of GdxBi1xBO3 crystals in the lines was proposed The present study demonstrates that the combination of Cu2+ and continuous wave NdYAG laser with λ=1064 nm is effective in inducting crystallization of oxide glasses The mechanism of laserinduced crystallization in glass has also been discussed
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