Optical second-order nonlinearity of the infrared transmitting 82Ge S2 · 18Cd Ga2 S4 nanocrystallized chalcogenide glass

Haizheng Tao, Changgui Lin, Shaoxuan Gu, Chengbin Jing, Xiujian Zhao

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Abstract

The infrared (IR) transmitting nanocrystallized chalcogenide glass only containing α-Cd Ga2 S4 IR nonlinear optical crystallites, which were confirmed by x-ray diffraction and Raman scattering measurements, was fabricated through the controllable nucleation and crystallization of the glass with the composition 82Ge S2 ·18Cd Ga2 S4 at a temperature of 325 °C far below the glass transition temperature (Tg: 415 °C) for a long duration. A clear second harmonic generation (green light, 532 nm) could be observed in the transparent 82Ge S2 ·18Cd Ga2 S4 nanocrystallized chalcogenide glass, demonstrating the IR frequency-doubling function of the prepared nanocrystallized composite material.

Original languageEnglish
Article number011904
JournalApplied Physics Letters
Volume91
Issue number1
DOIs
StatePublished - 2007
Externally publishedYes

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