Sensitivity Enhanced Refractive Index Sensor by Reducing the Influence of In-Plane Wavevector in Photonic Spin Hall Effect

Lijuan Sheng; Linguo Xie; Huiling Luo; Xinxing Zhou; Xiaohui Ling; Zhiyou Zhang

doi:10.1109/JPHOT.2018.2873213

IEEE Photonics Journal (Jan 2018)

Sensitivity Enhanced Refractive Index Sensor by Reducing the Influence of In-Plane Wavevector in Photonic Spin Hall Effect

Lijuan Sheng,
Linguo Xie,
Huiling Luo,
Xinxing Zhou,
Xiaohui Ling,
Zhiyou Zhang

Affiliations

Lijuan Sheng: Synergetic Innovation Center for Quantum Effects and Applications, School of Physics and Electronics, Hunan Normal University, Changsha, China
Linguo Xie: Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu, China
Huiling Luo: Synergetic Innovation Center for Quantum Effects and Applications, School of Physics and Electronics, Hunan Normal University, Changsha, China
Xinxing Zhou: ORCiD; Synergetic Innovation Center for Quantum Effects and Applications, School of Physics and Electronics, Hunan Normal University, Changsha, China
Xiaohui Ling: ORCiD; Hunan Provincial Key Laboratory of Intelligent Information Processing and Application, College of Physics and Electronic Engineering, Hengyang Normal University, Hengyang, China
Zhiyou Zhang: Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu, China

DOI: https://doi.org/10.1109/JPHOT.2018.2873213
Journal volume & issue: Vol. 10, no. 5
pp. 1 – 9

Abstract

Read online

Photonic spin Hall effect (SHE) can be an effective sensor for determining the refractive index (RI) variation of a sensing medium. How to further improve its sensitivity is a very interesting and important issue. In this paper, we theoretically propose a weak measurement method for enhancing the sensitivity of the photonic SHE-based RI sensor by reducing the influence of the in-plane wavevector. Of particular interest, our results indicate that the sensitivity of the presented configuration reaches about 3.16 × 10-7 RIU/μm which shows nearly two orders of magnitude improvement compared with the conventional one. Remarkably, this method can be applied for wide range of RI variation of the sensing medium while keeping the high sensitivity.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

About the journal

Abstract

Keywords