News
April 2023: Toward a tunable laser in the terahertz range.
Researchers have succeeded in generating intense photon emission, tunable across the entire terahertz frequency range, using both the magnetic field and the electron density present in the material under study. This discovery paves the way for the development of a compact laser source with a constant magnetic field that can be tuned across the entire terahertz spectrum simply by adjusting a gate voltage. More details.
Legend: Cyclotron emission lines from Dirac fermions in a HgTe/CdHgTe quantum well, as a function of magnetic field. The different curves correspond to different photon energies, ranging from 250 GHz to 3.1 THz. This set of curves indirectly shows that the energy of the emitted photons varies continuously with the applied magnetic field. © Charles Coulomb Laboratory
January 2023: Nature Photonics: Terahertz cyclotron emission from two-dimensional Dirac fermions.
Landau emission from Dirac fermions in graphene-like HgTe quantum wells has been experimentally demonstrated. The emission is shown to be tunable by both the magnetic field and the carrier concentration. These results represent a step forward in the development of terahertz Landau lasers that are tunable by a magnetic field and gate voltage. More details.
February 28, 2022: Article in Physics World: Experimental evidence found for long-distance intermolecular forces
Researchers in France have obtained experimental evidence of long-range attractive forces between cellular proteins more than 50 years after the idea was first proposed. These forces are mediated by electromagnetic radiation and could explain how molecules locate their targets within the crowded interiors of living cells. More details.
May 16–19, 2022: French-German Terahertz Conference
The conference brings together French and German scientists and students working in all fields of terahertz science and technology. It will take place by the sea, near Montpellier, in La Grande Motte, France, from May 16 to 19. More details.
February 16, 2022: Article in Science Advances
Experimental evidence for long-range electrodynamic intermolecular forces Science Advances 8, eabl5855 (2022).
November 2020: The multilayer structure of sunflower leaves revealed by terahertz waves
A new non-contact, non-invasive method for analyzing the multilayer structure of sheets, based on pulsed terahertz spectroscopy, has been developed. More details
October 28, 2020: The European LINkS Project
The LINkS project (Long-range electrodynamic INteractions between proteinS) was selected from among 877 proposals submitted to the FET-Open “Challenging Current Thinking” call for proposals under the Horizon 2020 program. The project, led by Jérémie Torres of the IES, aims to establish a scientific research initiative focused on biophysics and protein dynamics, both within our local community and beyond. More details
August 28, 2020: PRIME@MUSE Funding
With support from the Occitanie Region and MUSE, the TOP platform has received PRIME funding to develop the tools needed to study drought mitigation.More details
October 7, 2019: Article in Nature Photonics
Suppressed Auger scattering and tunable light emission from Landau-quantized massless Kane electrons Nature Photonics (2019).
June 27, 2019: Platform Award at the BioEM conference presented to Yoann
This award was presented on Friday, June 28, 2019, to Yoann Meriguet, a second-year doctoral student funded by the Occitanie Region, for his presentation on “ Collective oscillations of proteins demonstrated by terahertz spectroscopy in aqueous media , during the prestigious Bio-EM Conferenceheld from June 23 to 28, 2019, in Montpellier.
April 11, 2019. Phys. Rev. B: Massless Dirac fermions in III-V semiconductor quantum wells
Massless Dirac fermions in III-V semiconductor quantum wells, Phys. Rev. B 99, 121405 (R) (2019)
October 23, 2018. Physical Review X:
Out-of-equilibrium collective oscillation as phonon condensation in a model protein, Phys. Rev. X, 2018
February 7, 2018. Editor’s Highlight in Phys. Rev. Lett.: Topological phase transition in HgTe quantum wells
Temperature-induced topological phase transition in HgTe quantum wells, Physical Review Letters
November 8, 2017. Detecting THz waves at room temperature using graphene
Terahertz Detection and Imaging Using Graphene Ballistic Rectifiers, Nano Letters, 17(11), pp. 7015–7020, 2017
