"刚柔并济"构筑可"劈裂"光的高稳定性晶体材料  

Combining rigid and deformable groups to construct a robust birefringent crystal for compact polarization components

作　　者：杜志鹏 宋显宇 刘维 王子怡 沙洪源 许倩婷 周洋 李雁强 罗军华 赵三根 Zhipeng Du;Xianyu Song;Wei Liu;Ziyi Wang;Hongyuan Sha;Qianting Xu;Yang Zhou;Yanqiang Li;Junhua Luo;Sangen Zhao(State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China;College of Chemistry,Fuzhou University,Fuzhou 350108,China;Fujian College,University of Chinese Academy of Sciences,Fuzhou 350002,China;Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China,Fuzhou 350108,China)

机构地区：[1]State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China [2]College of Chemistry,Fuzhou University,Fuzhou 350108,China [3]Fujian College,University of Chinese Academy of Sciences,Fuzhou 350002,China [4]Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China,Fuzhou 350108,China

出　　处：《Science Bulletin》2024年第14期2205-2211,共7页科学通报（英文版）

基　　金：supported by the National Natural Science Foundation of China(22122507,61975207,22193042,21833010,and 21921001);the Natural Science Foundation of Fujian Province(2022J02012);the Youth Innovation Promotion Association of the Chinese Academy of Sciences(Y202069);the Key Research Program of Frontier Sciences of the Chinese Academy of Sciences(ZDBS-LYSLH024);the China Postdoctoral Science Foundation(2023M743498)。

摘　　要：There is a pressing demand for the development of novel birefringent crystals tailored for compact optical components,especially for crystals exhibiting large birefringence across a range of temperatures.This has commonly been achieved by introducing various deformable groups with high polarizability anisotropy.In this study,we combined both rigid and deformable groups to synthesise a new birefringent crystal,Al_(2)Te_(2)MoO_(10),which demonstrates an exceptional birefringence value of 0.29@550 nm at room temperature.Not only is this higher birefringence than that of commercial crystals,but Al_(2)Te_(2)MoO_(10)exhibits excellent birefringence stability over a wide temperature range,from 123 to 503 K.In addition,the first-principles theory calculations and structural analyses suggest that although the rigid AlO_(6)groups do not make much contribution to the prominent birefringence,they nonetheless played a role in maintaining the structural anisotropy at elevated temperatures.Based on these findings,this paper proposes a novel structural design strategy to complement conventional approaches for developing optimal birefringent crystals under various environmental conditions.

关 键 词：Combining rigid and deformable groups Optical anisotropy Structure-property relationship Birefringent crystal 

分 类 号：TB34[一般工业技术—材料科学与工程]