Surface exciton polariton enhanced Goos-Hänchen and Imbert-Fedorov shifts and their applications in refractive index sensing

被引：4
|
作者：
Xu, Yi [1 ]
Wu, Lin [2 ,3 ]
Ang, L. K. [2 ]
机构：
[1] Guilin Univ Elect Technol, Sch Optoelect Engn, Guilin 541004, Peoples R China
[2] Singapore Univ Technol & Design SUTD, Sci Math & Technol, 8 Somapah Rd, Singapore 487372, Singapore
[3] ASTAR, Inst High Performance Comp, 1 Fusionopolis Way,16-16 Connexis, Singapore 138632, Singapore
来源：
OPTICS EXPRESS | 2024年 / 32卷 / 07期
基金：
中国博士后科学基金; 中国国家自然科学基金; 新加坡国家研究基金会;
关键词：
GOOS-HANCHEN SHIFT; NEGATIVE LATERAL SHIFTS; BREWSTER DIP; REFLECTION; BEAM; LIGHT;
D O I：
10.1364/OE.517418
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The spatial and angular Goos-Hanchen shifts (GHSs) and Imbert-Fedorov shifts (IFSs) are theoretically investigated in a modified Kretschmann-Raether configuration consisting of glass prism, J -aggregate cyanine dye, and air. With the excitation of surface excitation polaritons (SEPs), the spatial and angular GHSs and IFSs for the transverse magnetic polarized light are strongly enhanced around the resonant angle of SEP. A highly sensitive gas sensor based on the SEP enhanced GHS (or IFS) is proposed, which exhibits the refractive index sensitivity on the order of 106A/RIU (or 105A/RIU) (A: illumination wavelength; RIU: refractive index unit) for the GHS- (or IFS-) based gas sensor, respectively.
引用
收藏
页码：11171 / 11181
页数：11
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