布鲁斯特角
光学
全向天线
布鲁斯特
光子晶体
材料科学
光子学
光电子学
自旋霍尔效应
物理
电信
计算机科学
自旋极化
天线(收音机)
量子力学
电子
作者
Zuhai Ma,Jiahao Hong,Shuai Lin,gan wan,R. K. Long,Jiahao Wen,Xinxing Zhou,Yu Chen
出处
期刊:Optics Letters
[The Optical Society]
日期:2023-11-01
卷期号:48 (21): 5811-5811
摘要
Since the enhancement of the photonic spin Hall effect (PSHE) is limited around the Brewster’s angle, the scientific problem of how to extend the range of incident angles and to keep them unidirectional for the enhanced PSHE remains open. Here, we propose an effective method to achieve the ultrawide angle and unidirectional enhancement of PSHE via the omnidirectional Brewster’s effect in a tilted uniaxial crystal. By properly setting the permittivity and the optical axial angle of the uniaxial crystal, the omnidirectional Brewster’s effect can be obtained to realize an ultrawide angle enhancement of the PSHE. Then, by appropriately deviating the optical axial angle, the ultrawide enhancement of the PSHE can be achieved within the maximum incident angle range of 60° with unchanged direction. These findings inspire an unprecedented route to facilitate the applications in precision measurement and spin-dependent devices.
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