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Villares G, Hugi A, Blaser S, et al. Dual-comb spectroscopy based on quantum-cascade-laser frequency combs. Nat Commun. 2014;5:5192doi: 10.1038/ncomms6192.
Villares, G., Hugi, A., Blaser, S., & Faist, J. (2014). Dual-comb spectroscopy based on quantum-cascade-laser frequency combs. Nature communications, 55192. https://doi.org/10.1038/ncomms6192
Villares, Gustavo, et al. "Dual-comb spectroscopy based on quantum-cascade-laser frequency combs." Nature communications vol. 5 (2014): 5192. doi: https://doi.org/10.1038/ncomms6192
Villares G, Hugi A, Blaser S, Faist J. Dual-comb spectroscopy based on quantum-cascade-laser frequency combs. Nat Commun. 2014 Oct 13;5:5192. doi: 10.1038/ncomms6192. PMID: 25307936.
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Nat Commun. 2014 Oct 13;5:5192. doi: 10.1038/ncomms6192.

Dual-comb spectroscopy based on quantum-cascade-laser frequency combs.

Nature communications

Gustavo Villares, Andreas Hugi, Stéphane Blaser, Jérôme Faist

Affiliations

  1. Institute for Quantum Electronics, ETH Zurich, Zurich CH-8093, Switzerland.
  2. Alpes Lasers SA, 1-3 Max.-de-Meuron, C.P. 1766, Neuchâtel CH-2000, Switzerland.

PMID: 25307936 DOI: 10.1038/ncomms6192

Abstract

Dual-comb spectroscopy performed in the mid-infrared-where molecules have their strongest rotovibrational absorption lines-offers the promise of high spectral resolution broadband spectroscopy with very short acquisition times (μs) and no moving parts. Recently, we demonstrated frequency comb operation of a quantum-cascade-laser. We now use that device in a compact, dual-comb spectrometer. The noise properties of the heterodyne beat are close to the shot noise limit. Broadband (15 cm(-1)) high-resolution (80 MHz) absorption spectroscopy of both a GaAs etalon and water vapour is demonstrated, showing the potential of quantum-cascade-laser frequency combs as the basis for a compact, all solid-state, broadband chemical sensor.

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