TY - JOUR
T1 - Patterning and morphology of nonlinear optical GdxBi 1-xBO3 crystals in CuO-doped glass by YAG laser irradiation
AU - Koshiba, K.
AU - Honma, T.
AU - Benino, Y.
AU - Komatsu, T.
PY - 2007/12
Y1 - 2007/12
N2 - Dots and lines consisting of nonlinear optical GdxBi 1-xBO3 crystals were patterned on the surface of CuO-doped Gd2O3-Bi2O3-B2O 3 glass by heat-assisted (200 °C) Nd:YAG laser irradiations with a wavelength of λ=1064 nm, where the laser energy absorbed by Cu 2+ is converted to the local heating of the surrounding Cu 2+. 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-xBO3 crystals 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.
AB - Dots and lines consisting of nonlinear optical GdxBi 1-xBO3 crystals were patterned on the surface of CuO-doped Gd2O3-Bi2O3-B2O 3 glass by heat-assisted (200 °C) Nd:YAG laser irradiations with a wavelength of λ=1064 nm, where the laser energy absorbed by Cu 2+ is converted to the local heating of the surrounding Cu 2+. 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-xBO3 crystals 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.
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U2 - 10.1007/s00339-007-4200-9
DO - 10.1007/s00339-007-4200-9
M3 - Article
AN - SCOPUS:35348942342
SN - 0947-8396
VL - 89
SP - 981
EP - 986
JO - Applied Physics A: Materials Science and Processing
JF - Applied Physics A: Materials Science and Processing
IS - 4
ER -