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Updated: Dec 27, 2025
On-Chip Crystallization and Large-Scale Serial Diffraction at Room Temperature
Published on: March 11, 2022
(Na0.60Ba0.70)Ga2Se4: An Infrared Nonlinear Optical Crystal Designed using AgGaSe2 as the Template
Ya-Nan Li1, Huaiguo Xue1, Sheng-Ping Guo1
1School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China.
Abstract:
A novel quaternary selenide (Na0.60Ba0.70)Ga2Se4 (1) obtained by a high-temperature method crystallizes in the non-centrosymmetric space group I4cm, and its structure features {[GaSe2]-}∞ chains. It exhibits phase-matchable second-harmonic generation responses with the largest intensity of 0.3 times that of AgGaS2, and its powder sample has a laser-induced damage threshold of ∼2.4 times that of AgGaS2. Discussion about its relationship with other highly related structures are addressed as well. Theoretical calculations are performed to analyze its electronic structure and optical properties.
