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Adaptive real-time dual-comb spectroscopy

Author

Listed:
  • Takuro Ideguchi

    (Max Planck Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, 85748 Garching, Germany)

  • Antonin Poisson

    (Institut des Sciences Moléculaires d’Orsay, CNRS, Bâtiment 350, Université Paris-Sud)

  • Guy Guelachvili

    (Institut des Sciences Moléculaires d’Orsay, CNRS, Bâtiment 350, Université Paris-Sud)

  • Nathalie Picqué

    (Max Planck Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, 85748 Garching, Germany
    Institut des Sciences Moléculaires d’Orsay, CNRS, Bâtiment 350, Université Paris-Sud
    Ludwig-Maximilians-Universität München, Fakultät für Physik, Schellingstrasse 4/III, 80799 München, Germany)

  • Theodor W. Hänsch

    (Max Planck Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, 85748 Garching, Germany
    Ludwig-Maximilians-Universität München, Fakultät für Physik, Schellingstrasse 4/III, 80799 München, Germany)

Abstract

The spectrum of a laser frequency comb consists of several hundred thousand equally spaced lines over a broad spectral bandwidth. Such frequency combs have revolutionized optical frequency metrology and they now hold much promise for significant advances in a growing number of applications including molecular spectroscopy. Despite an intriguing potential for the measurement of molecular spectra spanning tens of nanometres within tens of microseconds at Doppler-limited resolution, the development of dual-comb spectroscopy is hindered by the demanding stability requirements of the laser combs. Here we overcome this difficulty and experimentally demonstrate a concept of real-time dual-comb spectroscopy, which compensates for laser instabilities by electronic signal processing. It only uses free-running mode-locked lasers without any phase-lock electronics. We record spectra spanning the full bandwidth of near-infrared fibre lasers with Doppler-limited line profiles highly suitable for measurements of concentrations or line intensities. Our new technique of adaptive dual-comb spectroscopy offers a powerful transdisciplinary instrument for analytical sciences.

Suggested Citation

  • Takuro Ideguchi & Antonin Poisson & Guy Guelachvili & Nathalie Picqué & Theodor W. Hänsch, 2014. "Adaptive real-time dual-comb spectroscopy," Nature Communications, Nature, vol. 5(1), pages 1-8, May.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms4375
    DOI: 10.1038/ncomms4375
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    Cited by:

    1. Mingchen Liu & Robert M. Gray & Luis Costa & Charles R. Markus & Arkadev Roy & Alireza Marandi, 2023. "Mid-infrared cross-comb spectroscopy," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    2. Qiang Wang & Zhen Wang & Hui Zhang & Shoulin Jiang & Yingying Wang & Wei Jin & Wei Ren, 2022. "Dual-comb photothermal spectroscopy," Nature Communications, Nature, vol. 13(1), pages 1-7, December.

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