Journal of Industrial and Engineering Chemistry, Vol.12, No.5, 790-794, September, 2006
Second Harmonic Generation and Fabrication of Transparent K2O-Na2O-Nb2O5-TeO2 Glass-Ceramics
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To develop and utilize TeO2-based glasses as nonlinear optical materials or matrix glasses, xK2O-(14-x)Na2O-14Nb2O5-72TeO2 (x=0~14 mol%) glasses were prepared using a conventional melt quenching method and then the nano-crystallization behavior and second harmonic generation (SHG) properties of these glasses were investigated. Although SHG was clearly observed in 10K2O-4Na2O-14Nb2O5-72TeO2 glassceramics consisting of a nano-crystalline phase, the 14Na2O-14Nb2O5-72TeO2 glass-ceramic exhibited no SHG. K+ ions played an important role in inducing SHG in the K2O-Na2O-Nb2O5-TeO2 system.
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