双折射
各向异性
极化率
材料科学
极化(电化学)
光学
Crystal(编程语言)
光学各向异性
凝聚态物理
物理
化学
分子
计算机科学
量子力学
物理化学
程序设计语言
作者
Zhengyin Du,Xianyu Song,Wei Liu,Ziyi Wang,Hongyuan Sha,Qian-Ting Xu,Yang Zhou,Yanqiang Li,Junhua Luo,Sangen Zhao
标识
DOI:10.1016/j.scib.2024.04.006
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, Al2Te2MoO10, 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 Al2Te2MoO10 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 AlO6 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.
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