TY - JOUR
T1 - Surface crystallization and second-order optical non-linearity in Gd 2O3-Bi2O3-B2O 3 glasses
AU - Ihara, Rie
AU - Benino, Yasuhiko
AU - Fujiwara, Takumi
AU - Komatsu, Takayuki
N1 - Funding Information:
This work was supported from the Grant-in-Aid for Scientific Research from the Ministry of Education, Science, Sport, and Culture, Japan, from the 21st Century Center of Excellence (COE) Program in Nagaoka University of Technology, and from the SCOPE (Strategic Information and Communications R&D Promotion Program) project by the ministry of Public Management, Home Affairs, Posts and Telecommunications, Japan.
PY - 2005/3
Y1 - 2005/3
N2 - Some ternary Gd2O3-Bi2O3-B 2O3 glasses are prepared, and crystallization behavior and second harmonic intensity are examined to develop new non-linear optical crystallized glasses. The glasses with Gd2O3 contents of 8-14 mol% have large densities of over 6 g/cm3 and large refractive indices of ∼1.9. Transparent surface crystallized glasses consisting of two kinds of crystalline phases with different morphologies, i.e. plate shape and needle shape crystals, are fabricated by heat-treatment at temperatures between glass transition and crystallization temperatures. From second harmonic generation microscope observations, micro-Raman scattering spectra and XRD analyses, plate shape crystals are determined to be non-linear optical Gd xBi1-xBO3 and needle shape crystals are Bi 3B5O12 having no second-order optical non-linearity. Since crystallized glasses consisting of GdxBi 1-xBO3 crystals exhibit relatively strong SHGs, they have a high potential for application to light control devices.
AB - Some ternary Gd2O3-Bi2O3-B 2O3 glasses are prepared, and crystallization behavior and second harmonic intensity are examined to develop new non-linear optical crystallized glasses. The glasses with Gd2O3 contents of 8-14 mol% have large densities of over 6 g/cm3 and large refractive indices of ∼1.9. Transparent surface crystallized glasses consisting of two kinds of crystalline phases with different morphologies, i.e. plate shape and needle shape crystals, are fabricated by heat-treatment at temperatures between glass transition and crystallization temperatures. From second harmonic generation microscope observations, micro-Raman scattering spectra and XRD analyses, plate shape crystals are determined to be non-linear optical Gd xBi1-xBO3 and needle shape crystals are Bi 3B5O12 having no second-order optical non-linearity. Since crystallized glasses consisting of GdxBi 1-xBO3 crystals exhibit relatively strong SHGs, they have a high potential for application to light control devices.
KW - Bismuth borate glass
KW - Crystallization
KW - Micro-Raman spectra
KW - Rare-earth ions
KW - Second harmonic generation
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U2 - 10.1016/j.stam.2004.11.005
DO - 10.1016/j.stam.2004.11.005
M3 - Article
AN - SCOPUS:15844374801
SN - 1468-6996
VL - 6
SP - 138
EP - 142
JO - Science and Technology of Advanced Materials
JF - Science and Technology of Advanced Materials
IS - 2
ER -