Titanosilicates with Strong Phase-Matched Second Harmonic Generation Responses

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题名:	Titanosilicates with Strong Phase-Matched Second Harmonic Generation Responses
作者:	張伯琛;Chao, Tzu-Ling;Chang, Wen-Jung;Wen, Shu-Han;Lin, Yu-Qing;Chang, Bor-Chen;Lii, Kwang-Hwa
贡献者:	理學院化學學系
关键词:	borates;crystals;oxides;phosphates;silicates
日期:	2016-07-27
上传时间:	2026-04-21 14:47:43 (UTC+8)
出版者:	American Chemical Society;United States: American Chemical Society
摘要:	摘要： The search for new and efficient nonlinear optical (NLO) materials has been an active research because of their technological importance in laser applications. Although a large number of frequency-doubling oxides, phosphates, borates, and fluoride-containing borates were found, no transition-metal silicate with useful NLO properties has been reported. We have now synthesized and grown crystals of two new titanosilicates, Li2K4[(TiO)Si4O12] and Li2Rb4[(TiO)Si4O12], by using a flux and supercritical hydrothermal method. Their unique 3D framework structures contain highly compressed TiO5 square pyramids which are arranged one over the other to form infinite ···Ti–O···Ti–O straight chains with alternating short and long Ti–O distances. These two materials meet the requirements for efficient second harmonic generation including lack of center of inversion symmetry, large susceptibility, phase matching, transmitting at wavelengths of interest, resistant to laser damage, and thermally stable. These attributes make them very attractive for frequency-doubling materials. 其他題名： J. Am. Chem. Soc 出版者： United States: American Chemical Society 出版日期： 2016-07-27 出處： Journal of the American Chemical Society, 2016-07, Vol.138 (29), p.9061-9064 資源來源： American Chemical Society Journals 版權： Copyright © 2016 American Chemical Society 識別號： ISSN: 0002-7863 識別號： ISSN: 1520-5126 識別號： EISSN: 1520-5126 識別號： DOI: 10.1021/jacs.6b05327 識別號： PMID: 27416357
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