Modeling of Grating Assisted Hybrid Plasmonic Filter and Its On-Chip Gas Sensing Application

Singh, Mandeep and Raghuwanshi, Sanjeev Kumar and Prakash, Om (2019) Modeling of Grating Assisted Hybrid Plasmonic Filter and Its On-Chip Gas Sensing Application. IEEE Sensors Journal, 19 (11). pp. 134-143. ISSN 1530-437X

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Abstract

A dual-band stop vertical hybrid plasmonic filter based on the silicon nitride fin Bragg grating (FBG) is designed and simulated in the infra-red band. It consists of the two silicon nitride FBGs embedded in the silicon waveguide separated by LSP spacing. Finite element method-based 3D-COMSOL simulation shows two stop band wavelengths at 1.462 and 1.515 µm, respectively. Furthermore, its on-chip methane gas sensing application for coal mines is also investigated. The proposed filtercum-sensor is the complementary metal–oxide–semiconductor compatible demonstrating 856.50-nm/RIU sensitivity, 120-RIU−1 figure of merit, 6.34×10−2 RIU limit of detection, and 0.52-nm/K temperature sensitivity

Item Type: Article
Uncontrolled Keywords: Optical filter, Bragg grating, Si3N4 waveguide, hybrid plasmonic waveguide, integrated optics, Kramer-Kronig
Subjects: Engineering > MIT Manipal > Electrical and Electronics
Engineering > MIT Manipal > Electronics and Communication
Depositing User: MIT Library
Date Deposited: 05 Jul 2019 05:45
Last Modified: 05 Jul 2019 05:45
URI: http://eprints.manipal.edu/id/eprint/154128

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