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Conferences > CLEO_SI > 2020 > STh1N > STh1N.3

On-Chip Dispersion Spectroscopy of CO2 Using a Mid-Infrared Microring Resonator

Floria Ottonello Briano, Carlos Errando-Herranz, and Kristinn B. Gylfason

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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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