Abstract
IR Li 2 Ga 2 GeS 6 nonlinear crystals were directly obtained with the composition of 40GeS 2 - 30Ga 2 S 3 -30Li 2 S, by the conventional melt-quenching method. The high depth digital image indicated that the obtained Li 2 Ga 2 GeS 6 crystals showed a big size of 0.3 × 0.25 × 0.3 mm 3 . It was shown that the compound was very susceptive to H 2 O with second harmonic observation. Besides, the glass-forming region of GeS 2 -Ga 2 S 3 - Li 2 S system was further studied by the conventional melt-quenching method.GeS 2 -Ga 2 S 3 -Li 2 S glass-ceramics containing IR Li 2 Ga 2 GeS 6 nonlinear nanocrystals were obtained at a more carefully controlled heating rate.
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