Hairun Guo, W. Weng, Junqiu Liu, Fan Yang, W. Hänsel, C. Brès, L. Thévenaz, R. Holzwarth, T. Kippenberg
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Nanophotonic Supercontinuum Based Mid-Infrared Dual-Comb Spectroscopy
We demonstrate a broadband mid-infrared dualcomb spectroscopy for parallel gas-phase detection in the functional group region from 2800-3600c $\mathrm{m}^{-1}$, using dispersion engineered silicon nitride dual-core waveguides which produce broadband, intensity-enhanced and coherent mid-infrared frequency combs.