Stefano BARBIERI

Research Director
IEMN Laboratory - UMR 8520
Avenue Henri Poincaré
59 652 VILLENEUVE D'ASCQ CEDEX
+33 (0)3 20 19 79 88
stefano.barbieri@iemn.fr

 

Short Biography

Stefano Barbieri received his PhD in Physics in 2000 at Scuola Normale Superiore (Pisa, Italy). In 2000, he joined as a Research Scientist Orbisphere SA (Geneva, Switzerland), where he focused on the development of gas-sensing systems based on laser photo-acoustic spectroscopy. In 2002, he joined TeraView Ltd (Cambridge, UK) where he coordinated an R&D activity focused on THz QCLs in collaboration with the Cavendish Laboratory, of Cambridge University of Cambridge. In 2004, he was awarded a three-year Industry-fellowship from the Royal Society aimed at promoting technology transfer between industry and academic institutions. In December 2005, he was recruited by CNRS in France. From 2005 to 2016 he has been in charge of THz research at the MPQ Laboratory at the University of Paris Diderot (Paris, France). Since 2016 he joined the THz-Photonics group at IEMN Laboratory (Lille, France). Presently, his main research interests are III-V semiconductor ultrafast detectors and modulators operating in the mid-infrared range. Stefano Barbieri has co-authored more than 70 publication in peered-reviewed journals.

 

Present research interests

–   THz quantum cascade lasers: microwave modulation, active mode-locking and stabilisation

–   Electro-optic and photoconductive sampling of THz and sub-mm coherent sources

–   Stabilisation and frequency noise of quantum-cascade-laser pumped THz gas lasers

–  Development of III-V semiconductor ultrafast detectors and modulators operating in the mid-infrared range

Current projects

-   ANR PRC project "BIRD - Broadband mid-infrared semiconductor modulators" (2022-2026) 
-   ANR PEPR project "COMPTERA - Electronic components for THz imaging" (2023-2028)

5 recent publications

[1] Real-time, chirped-pulse heterodyne detection at room temperature with 100 GHz 3-dB-bandwidth mid-infrared quantum-well photodetectors, Lin Q., Hakl M., Lepillet S., Li H., Lampin J.-F., Peytavit E., and Barbieri S., Optica 10, 1700 (2023). https://doi.org/10.1364/OPTICA.505745

[2] SOI-based micro-mechanical terahertz detector operating at room-temperature and atmospheric pressure, K. Froberger, B. Walter, M. Lavancier, R. Peretti, G. Ducournau, J-F. Lampin, M. Faucher, and S. Barbieri, Appl. Phys. Lett. 120, 261103 (2022). https://doi.org/10.1063/5.0153046

[3] Optically Pumped Terahertz Molecular Laser: Gain Factor and Validation up to 5.5 THz, M-H Mammez, Z. Buchanan, O. Pirali, M-A. Martin-Drumel, J. Turut, G. Ducournau, S. Eliet, F. Hindle, S. Barbieri, P. Roy, G. Mouret, J-F. Lampin, Advanced Phot. Res. 3, 2100263 (2022). https://doi.org/10.1002/adpr.202100263

[4] Real-time multimode dynamics of Terahertz Quantum Cascade Lasers via intra-cavity self-detection: observation of self-mode-locked population pulsations. Li, W. Wan, Z. Li, J. C. Cao, S. Lepillet, J-F.Lampin, K. Froberger, L. Columbo, M. Brambilla, and S. Barbieri,  Opt. Expr. 30, 3215 (2022). https://doi.org/10.1364/OE.444295

[5] Ultrafast quantum well photodetectors operating at 10μm with flat frequency response up to 70GHz at room temperature. M. Hakl, Q. Lin, S. Lepillet, M. Billet, J-F.Lampin, S. Pirotta, R. Colombelli, W. J. Wan, J. C. Cao, H. Li, E. Peytavit, and S. Barbieri, ACS Photon. 8, 464 (2021). https://doi.org/10.1021/acsphotonics.0c01299