Title

Integrated slotted ring resonator at mid-infrared for on-chip sensing applications

Author's Department

Physics Department

Second Author's Department

Physics Department

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https://www.spiedigitallibrary.org/journals/journal-of-nanophotonics/volume-13/issue-3/036016/Integrated-slotted-ring-resonator-at-mid-infrared-for-on-chip/10.1117/1.JNP.13.036016.short?SSO=1

All Authors

Sarah Shafaay; Mohamed A. Swillam

Document Type

Research Article

Publication Title

Journal of Nanophotonics

Publication Date

12-31-2019

doi

10.1117/1.JNP.13.036016

Abstract

We propose various optical ring gas sensors. These gas sensors are promising candidates for integrated on-chip sensing. The sensing operation depends on the change in the effective index. We show a detailed study of different sensors utilizing the absorption wavelength of both methane and carbon dioxide gases. These sensors mainly operate at the range of mid-infrared wavelengths because it contains the vibrational resonance of the gases of interest. We provide the details about the dimensions and the material used in our different structures. Moreover, we report sensitivity up to 5938 nm / RIU, and the full-width-half maximum (FWHM) and figure of merit (FoM) for all designs are also calculated. We succeeded in squeezing the FWHM to 4.76 nm and increasing the FoM to 1744.72.

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