Pruneri, V., Kazansky, P.G., Hewak, D., Wang, J., Takebe, H. and Payne, D.N.
Frequency doubling in Ga:La:S optical glass with microcrystals
Applied Physics Letters, 70, (2), . (doi:10.1063/1.118345).
Second harmonic generation in gallium-lanthanum-sulphide (Ga:La:S) and GeS2+Ga:La:S glasses is investigated. It is shown that microcrystals of Ga:La:S and of alpha-phase of gallium-sulphide (alpha-Ga2S3), whose presence in the glass matrix is revealed by x-ray diffraction analysis, are responsible for the frequency doubling process.
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