Polarization-insensitive refractive index sensor based on high-Q resonance in all-dielectric metasurface

Bhairov Kumar Bhowmik; Tanmay Bhowmik; Pranav Kumar Pandey; Debabrata Sikdar; Gagan Kumar

doi:10.1364/FIO.2022.JTu5B.68

Frontiers in Optics + Laser Science 2022 (FIO, LS)
Technical Digest Series (Optica Publishing Group, 2022),
paper JTu5B.68
•https://doi.org/10.1364/FIO.2022.JTu5B.68

Polarization-insensitive refractive index sensor based on high-Q resonance in all-dielectric metasurface

Bhairov Kumar Bhowmik, Tanmay Bhowmik, Pranav Kumar Pandey, Debabrata Sikdar, and Gagan Kumar

Frontiers in Optics 2022

Rochester, New York United States
17–20 October 2022
ISBN: 978-1-957171-17-3

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B. K. Bhowmik, T. Bhowmik, P. K. Pandey, D. Sikdar, and G. Kumar, "Polarization-insensitive refractive index sensor based on high-Q resonance in all-dielectric metasurface," in Frontiers in Optics + Laser Science 2022 (FIO, LS), Technical Digest Series (Optica Publishing Group, 2022), paper JTu5B.68.

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Abstract

We report a polarization-insensitive all-dielectric metasurface that exhibits high-Q (~500) resonance at optical-communication wavelength. The refractive index sensing of the analyte indicates a sensitivity of 50 RIU/nm and figure-of-merit 16.12 RIU^-1, irrespective of polarizationrotation.

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