The novel Zn-based ultraviolet birefringent crystals combined both large birefringence and wide bandgap

X Xinyue Shi (Shanghai Key Laboratory for R&D and Application of Metallic Functional Materials, Institute of New Energy for Vehicles, School of Materials Science and Engineering) X Xueqing Liu Y Yipeng Pang (College of Physics, Qingdao Key Laboratory of Ultrabroadband Terahertz Crystals and System Applications, Qingdao Broadband Terahertz Spectroscopy Technology Engineering Research Center, Qingdao University 1 , Qingdao 266071,) Y Yuan Fang (Department of Physics & Astronomy, Extreme Quantum Materials Alliance, Smalley-Curl Institute) D Degao Zhong (College of Physics Qingdao Key Laboratory of Ultrabroadband Terahertz Crystals and System Applications Qingdao Broadband Terahertz Spectroscopy Technology Engineering Research Center Qingdao University Qingdao People's Republic of China) B Bing Teng (College of Physics Qingdao Key Laboratory of Ultrabroadband Terahertz Crystals and System Applications Qingdao Broadband Terahertz Spectroscopy Technology Engineering Research Center Qingdao University Qingdao People's Republic of China) Y Yisheng Huang (State Key Laboratory of Functional Crystals and Devices, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences 2 , Fuzhou 350002,) Z Zhoubin Lin (State Key Laboratory of Functional Crystals and Devices, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences 2 , Fuzhou 350002,) S Shijia Sun (College of Physics Qingdao Key Laboratory of Ultrabroadband Terahertz Crystals and System Applications Qingdao Broadband Terahertz Spectroscopy Technology Engineering Research Center Qingdao University Qingdao People's Republic of China)

Abstract

The exploration of ultraviolet (UV) birefringent crystals is hindered by the contradiction between a sufficient birefringence and wide bandgap. The first Zn-based selenite halides UV birefringent crystals KZn(HSeO3)2X (X = Cl, Br) were structurally designed and synthesized. They were identified as promising short-wave UV birefringent materials with well-balanced performance, including prominent birefringence, a short UV cutoff edge, a wide transparency range, and ease of crystal growth.

Article Details

Volume / Issue Vol. 128, Issue 24
Published June 15, 2026
ISSN 0003-6951
Publisher American Institute of Physics

Journal Info

Applied Physics Letters

American Institute of Physics

ISSN: 0003-6951 Physical Sciences

Authors (9)

X

Xinyue Shi

Shanghai Key Laboratory for R&D and Application of Metallic Functional Materials, Institute of New Energy for Vehicles, School of Materials Science and Engineering

X

Xueqing Liu

Y

Yipeng Pang

College of Physics, Qingdao Key Laboratory of Ultrabroadband Terahertz Crystals and System Applications, Qingdao Broadband Terahertz Spectroscopy Technology Engineering Research Center, Qingdao University 1 , Qingdao 266071,

Y

Yuan Fang

Department of Physics & Astronomy, Extreme Quantum Materials Alliance, Smalley-Curl Institute

D

Degao Zhong

College of Physics Qingdao Key Laboratory of Ultrabroadband Terahertz Crystals and System Applications Qingdao Broadband Terahertz Spectroscopy Technology Engineering Research Center Qingdao University Qingdao People's Republic of China

B

Bing Teng

College of Physics Qingdao Key Laboratory of Ultrabroadband Terahertz Crystals and System Applications Qingdao Broadband Terahertz Spectroscopy Technology Engineering Research Center Qingdao University Qingdao People's Republic of China

Y

Yisheng Huang

State Key Laboratory of Functional Crystals and Devices, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences 2 , Fuzhou 350002,

Z

Zhoubin Lin

State Key Laboratory of Functional Crystals and Devices, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences 2 , Fuzhou 350002,

S

Shijia Sun

College of Physics Qingdao Key Laboratory of Ultrabroadband Terahertz Crystals and System Applications Qingdao Broadband Terahertz Spectroscopy Technology Engineering Research Center Qingdao University Qingdao People's Republic of China