Transmissive Refractive Index Sensing Based on Frequency-Sensitive Responses of Two-Dimensional Photonic Crystals

Xulin Lin; Haiwen Fang; Lin Wang; Guo Ping Wang; Xunya Jiang

doi:10.1109/JPHOT.2016.2615283

IEEE Photonics Journal (Jan 2016)

Transmissive Refractive Index Sensing Based on Frequency-Sensitive Responses of Two-Dimensional Photonic Crystals

Xulin Lin,
Haiwen Fang,
Lin Wang,
Guo Ping Wang,
Xunya Jiang

Affiliations

Xulin Lin: College of Electronic Science and Technology, Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, China
Haiwen Fang: Department of Illuminating Engineering and Light Sources, School of Information Science and Engineering, Fudan University, Shanghai, China
Lin Wang: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China
Guo Ping Wang: College of Electronic Science and Technology, Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, China
Xunya Jiang: Department of Illuminating Engineering and Light Sources, School of Information Science and Engineering, Fudan University, Shanghai, China

DOI: https://doi.org/10.1109/JPHOT.2016.2615283
Journal volume & issue: Vol. 8, no. 5
pp. 1 – 7

Abstract

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In this paper, we propose a new scheme of refractive index (RI) sensing, which utilizes frequency-sensitive responses of 2-D photonic crystals. Specifically, the 2-D photonics crystals consist of dielectric rods arranged in rectangular lattice and support frequency-sensitive supercollimation (SC). Small changes in ambient RI are sensed by measuring transmission rate of a narrow spectral source. This RI sensing scheme exploits the sensitive dispersion properties around the SC frequency: Both reflection and beam diffraction are enhanced in response to a slight increase of ambient RI. Operation and performance of the transmissive RI sensing are demonstrated by finite-difference time-domain (FDTD) simulations. The major advantage of our design is that all the essential components can be compactly integrated, which makes it attractive for a number of applications, such as hand-held equipment and distributed sensor networks.

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

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