High density terahertz frequency comb ...
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Article dans une revue scientifique: Article original
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Title :
High density terahertz frequency comb produced by coherent synchrotron radiation
Author(s) :
Tammaro, S [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Synchrotron SOLEIL [SSOLEIL]
Pirali, Olivier [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Institut des Sciences Moléculaires d'Orsay [ISMO]
Roy, P [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Lampin, Jean-Francois [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Ducournau, Guillaume [Auteur]
Photonique THz - IEMN [PHOTONIQUE THZ - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Cuisset, A. [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Hindle, Francis [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Mouret, Gaël [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Synchrotron SOLEIL [SSOLEIL]
Pirali, Olivier [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Institut des Sciences Moléculaires d'Orsay [ISMO]
Roy, P [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Lampin, Jean-Francois [Auteur]

Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Ducournau, Guillaume [Auteur]

Photonique THz - IEMN [PHOTONIQUE THZ - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Cuisset, A. [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Hindle, Francis [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Mouret, Gaël [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Journal title :
Nature Communications
Pages :
1-6 / Article n° 7733
Publisher :
Nature Publishing Group
Publication date :
2015
ISSN :
2041-1723
HAL domain(s) :
Physique [physics]/Physique [physics]/Instrumentations et Détecteurs [physics.ins-det]
Sciences de l'ingénieur [physics]/Electromagnétisme
Sciences de l'ingénieur [physics]/Electromagnétisme
English abstract : [en]
Frequency combs have enabled significant progress in frequency metrology and high-resolution spectroscopy extending the achievable resolution while increasing the signal-to-noise ratio. In its coherent mode, synchrotron ...
Show more >Frequency combs have enabled significant progress in frequency metrology and high-resolution spectroscopy extending the achievable resolution while increasing the signal-to-noise ratio. In its coherent mode, synchrotron radiation is accepted to provide an intense terahertz continuum covering a wide spectral range from about 0.1 to 1 THz. Using a dedicated heterodyne receiver, we reveal the purely discrete nature of this emission. A phase relationship between the light pulses leads to a powerful frequency comb spanning over one decade in frequency. The comb has a mode spacing of 846 kHz, a linewidth of about 200 Hz, a fractional precision of about 2 × 10(-10) and no frequency offset. The unprecedented potential of the comb for high-resolution spectroscopy is demonstrated by the accurate determination of pure rotation transitions of acetonitrile.Show less >
Show more >Frequency combs have enabled significant progress in frequency metrology and high-resolution spectroscopy extending the achievable resolution while increasing the signal-to-noise ratio. In its coherent mode, synchrotron radiation is accepted to provide an intense terahertz continuum covering a wide spectral range from about 0.1 to 1 THz. Using a dedicated heterodyne receiver, we reveal the purely discrete nature of this emission. A phase relationship between the light pulses leads to a powerful frequency comb spanning over one decade in frequency. The comb has a mode spacing of 846 kHz, a linewidth of about 200 Hz, a fractional precision of about 2 × 10(-10) and no frequency offset. The unprecedented potential of the comb for high-resolution spectroscopy is demonstrated by the accurate determination of pure rotation transitions of acetonitrile.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Source :
Submission date :
2025-01-23T09:23:05Z
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