Anne Amy-Klein

UNIVERSITY PROFESSOR

Bureau: D015, Campus Villetaneuse

Research group website
Laboratory website

My research background:

I am a physics professor at the Laboratoire de Physique des Lasers, and director of this laboratory since 2019. I did a thesis on resonant wave mixing in gaseous atomic media, then became an associate professor and studied spectroscopy of atoms in the vicinity of dielectric surfaces. I then joined the LPL’s Metrology, Molecules and Fundamental Tests team, which focuses on precision measurements, in particular ultra-high resolution spectroscopy of molecules. The aim is to discover new physical effects beyond current theories, by comparing ultra-precise measurements with the values expected by the various existing physical models.

I’m currently working on the dissemination of ultra-stable frequency signals via optical fibers and the development of the REFIMEVE national research infrastructure. This opens up a wide range of applications, including clock comparisons, fundamental physics tests, and quantum communications.

Courses taught:

  • Physique Quantique 2 : Formalisme de la physique quantique

Research themes:

  • Molecular spectroscopy
  • Dissemination of ultrastable time and frequency signals
Tuning of the position of a crystal in an optical setup for sum-frequency generation.

A few selected articles

  • M. Schioppo, J. Kronjäger, A. Silva, R. Ilieva, J. W. Paterson, C. F. A. Baynham, W. Bowden, I. R. Hill, R. Hobson, A. Vianello, M. Dovale-Álvarez, R. A. Williams, G. Marra, H. S. Margolis, A. Amy-Klein, O. Lopez, E. Cantin, H. Álvarez-Martínez, R. Le Targat, P. E. Pottie, N. Quintin, T. Legero, S. Häfner, U. Sterr, R. Schwarz, S. Dörscher, C. Lisdat, S. Koke, A. Kuhl, T. Waterholter, E. Benkler, and G. Grosche, «Comparison of ultrastable lasers at 7×10-17 fractional frequency instability through a 2,220 km long optical fibre link network», Nat. Comm. 13, 212 (2022).
    DOI: 10.1038/s41467-021-27884-3
  • E. Cantin, M. Tønnes, R. Le Targat, A. Amy-Klein, O. Lopez, P.-E. Pottie, «An accurate and robust metrological network for coherent optical frequency dissemination», New J. Phys. 23, 053027 (2021).
    DOI: 10.1088/1367-2630/abe79e
  • B. Argence, B. Chanteau, O. Lopez, D. Nicolodi, M. Abgrall, C. Chardonnet, C. Daussy, B. Darquié, Y. Le Coq and A. Amy-Klein, «Quantum cascade laser frequency stabilization at the sub-Hz-level», Nature Photon 9, 456 (2015).
    DOI: 10.1038/nphoton.2015.93
69 documents

  • Dang Bao An Tran, Mathieu Manceau, Olivier Lopez, Andrey Goncharov, Anne Amy-Klein, et al.. Extending frequency metrology to increasingly complex molecules: SI-traceable sub-Doppler mid-IR spectroscopy of trioxane. 2025. ⟨hal-04939697⟩
  • D B A Tran, O. Lopez, M. Manceau, A. Goncharov, M. Abgrall, et al.. Near- to mid-IR spectral purity transfer with a tunable frequency comb: Methanol frequency metrology over a 1.4 GHz span. APL Photonics, 2024, 9 (3), ⟨10.1063/5.0170227⟩. ⟨hal-04797936v2⟩
  • C Clivati, M Pizzocaro, E K Bertacco, S Condio, G A Costanzo, et al.. Coherent Optical-Fiber Link Across Italy and France. Physical Review Applied, 2022, ⟨10.1103/PhysRevApplied.18.054009⟩. ⟨hal-03838736⟩
  • Mads Bebe Krog Tønnes, Frédéric Schuller, Etienne Cantin, Olivier Lopez, Rodolphe Le Targat, et al.. Coherent fiber links operated for years: effect of missing data. Metrologia, 2022, 59, ⟨10.1088/1681-7575/ac938e⟩. ⟨hal-03838745⟩
  • M. Schioppo, J. Kronjäger, A. Silva, R. Ilieva, J. W Paterson, et al.. Comparing ultrastable lasers at 7 × 10−17 fractional frequency instability through a 2220 km optical fibre network. Nature Communications, 2022, 13 (1), pp.212. ⟨10.1038/s41467-021-27884-3⟩. ⟨hal-03528135⟩
  • Karim Manamanni, Tatiana Steshchenko, Fabrice Wiotte, Rodolphe Le Targat, Michel Abgrall, et al.. Limitations due to residual interference in a fiber-based optical frequency reference at 1.55 µm. Journal of the Optical Society of America B, 2022, 39 (2), pp.438. ⟨10.1364/JOSAB.442302⟩. ⟨hal-03531498v2⟩
  • Rodolphe Le Targat, Yannick Foucault, William Moreno, Jérôme Lodewyck, Manuel Andia, et al.. Optical Clocks and applications to fundamental Physics tests and to Earth Sciences. OPTIQUE Dijon 2021, Société Française d'Optique, Jul 2021, Dijon (Bourgogne), France. ⟨hal-04031130⟩
  • Dan Xu, Olivier Lopez, Anne Amy-Klein, Paul-Eric Pottie. Non-reciprocity in optical fiber links: experimental evidence. Optics Express, 2021, 29 (11), pp.17476. ⟨10.1364/oe.420661⟩. ⟨hal-03263508⟩
  • Dan Xu, Olivier Lopez, Anne Amy-Klein, Paul-Eric Pottie. Polarization Scramblers to Solve Practical Limitations of Frequency Transfer. Journal of Lightwave Technology, 2021, 39, pp.3106 - 3111. ⟨10.1109/jlt.2021.3057804⟩. ⟨hal-03548635⟩
  • Etienne Cantin, Mads Tønnes, Rodolphe Le Targat, Anne Amy-Klein, Olivier Lopez, et al.. An accurate and robust metrological network for coherent optical frequency dissemination. New Journal of Physics, 2021, ⟨10.1088/1367-2630/abe79e⟩. ⟨hal-03149620⟩

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