Abstract

We demonstrate on-chip molecular fingerprinting by measuring the refractive index dispersion of gas in the mid-IR using a thermally tuned suspended silicon microring resonator. We show CO2 sensing down to 1000 ppm at 4.23 µm wavelength.

© 2020 The Author(s)

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More Like This
On-chip Spectroscopy of CO2 with MIR Waveguides

Kristinn B. Gylfason, Floria Ottonello-Briano, Carlos Errando-Herranz, Henrik Rodjegard, Hans Martin, and Hans Sohlstrom
EM4C.3 Optics and Photonics for Sensing the Environment (ES) 2020

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SF2H.5 CLEO: Science and Innovations (CLEO_SI) 2016

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