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@univ-lille.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).

Current 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
-   Development of ultrafast mid-infrared detectors
-   Stabilisation and frequency noise of quantum-cascade-laser pumped THz gas lasers

Current research projects

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

Scientific publications

  1. Froberger, B. Walter, M. Lavancier, R. Peretti, G. Ducournau, J-F. Lampin, M. Faucher, and S. Barbieri, SOI-based micro-mechanical terahertz detector operating at room-temperature and atmospheric pressureAppl. Phys. Lett. 120, 261103 (2022)
  2. M-H Mammez, Z. Buchanan, O. Pirali, M-A. Martin-Drumel, J. Turut, G. Ducournau, S. Eliet, F. Hindle, BarbieriP. Roy, G. Mouret, J-F. Lampin, Optically Pumped Terahertz Molecular Laser: Gain Factor and Validation up to 5.5 THz Advanced Phot. Res. 3, 2100263 (2022)
  3. S. Hearne, M.-H. Mammez, D. Mammez, M.-A. Martin-Drumel, P. Roy, O. Pirali, S. Eliet, S. Barbieri, F. Hindle, G. Mouret, J-F. Lampin Unlocking synchrotron sources for THz spectroscopy at sub-MHz resolutionOpt. Expr. 30, 7372 (2022)
  4. Quinchard, C. Mismer, M. Hakl, J. Pereira, Q. Lin, S. Lepillet, V. Trinite, A. Evirgen, E. Peytavit, J. L. Reverchon, J. F. Lampin, S. Barbieriand A. Delga, High speed, antenna-enhanced 10.3um quantum cascade detectorAppl. Phys. Lett. 120, 091108 (2022)
  5. Li, W. Wan, Z. Li, J. C. Cao, S. Lepillet, J-F.Lampin, K. Froberger, L. Columbo, M. Brambilla, and S. Barbieri, Real-time multimode dynamics of Terahertz Quantum Cascade Lasers via intra-cavity self-detection: observation of self-mode-locked population pulsations. Opt. Expr. 30, 3215 (2022)
  6. 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, Ultrafast quantum well photodetectors operating at 10μm with flat frequency response up to 70GHz at room temperatureACS Photon. 8, 464 (2021)
  7. Zhao, Z. Li, K. Zhou, X. Liao, W. Guan, W. Wan, S. Yang, J. C. Cao, D. Xu, S. Barbieriand H, Li, Active Stabilization of Terahertz Semiconductor Dual-Comb Laser Sources Employing a Phase Locking Technique Laser Photon. Rev. 2000498 (2021)
  8. J-F. Lampin, A. Pagies, G. Santarelli, J. Hessler, W. Hansel, R. Holtzwarth, and Barbieri, Quantum cascade laser-pumped terahertz molecular lasers: frequency noise and phase-locking using a 1560nm frequency combOpt. Expr. 28, 2091 (2020)
  9. Kliebisch, D. C. Heinecke, S. Barbieri, G. Santarelli, H. Li, C. Sirtori, and T. Dekorsy, Unambiguous real-time terahertz frequency metrology using dual 10 GHz femtosecond frequency combsOptica 5 ,1431 (2018)
  10. Palaferri, Y. Todorov, D. Gacemi, S. BarbieriL. H. Li, A. G. Davies, E. H. Linfield, and C. Sirtori, Noise characterization of patch antenna THz photodetectorsAppl. Phys. Lett. 113,161105 (2018)
  11. L. Columbo, S. Barbieri, C. Sirtori, M. Brambilla, Dynamics of a broad-band quantum cascade laser: from chaos to coherent dynamics and mode-locking, Opt. Expr. 26, 2829 (2018)
  12. Belacel, Y. Todorov, S. Barbieri, D. Gacemi, I. Favero, and C. Sirtori Optomechanical THz detection with single meta-atom resonator, Nature Comm. 8, 1578 (2017).
  13. Billet, Y. Desmet, F. Bavedila, S. Barbieri, W. Hänsel, R. Holzwarth, G. Ducournau, J-F. Lampin and E. Peytavit Sub sampling of RF and THz waves using LT-GaAs photoconductors under 1550 nm light excitation, submitted to Electronics Lett. (July 2017)
  14. A Mottaghizadeh, D. Gacemi, P. Laffaille, H. Li, M. Amanti, C. Sirtori, G. Santarelli, W. Hansel, R. Holzwart, L. H. Li, E. H. Linfield, and S. Barbieri 5ps-long terahertz pulses from an active-mode locked quantum cascade laser, Optica 4, 170 (2017).
  15. Zhu, H. Li, W. Wan, L. Gu, T. Zhou, S. Barbieri, and J. Cao, Beat note analysis and spectral modulation of terahertz quantum cascade lasers with radio frequency injection, Ch. Opt. Lett. 15, 011404 (2017)
  16. Li, P. Laffaille, D. Gacemi, M. Apfel, C. Sirtori, J. Leonardon, G. Santarelli, Rösch, G. Scalari, M. Beck, J. Faist, W. Hänsel, R. Holzwarth, and S. Barbieri, Dynamics of ultra-broadband terahertz quantum cascade lasers for comb operation, Opt. Expr. 23, 33270 (2015)
  17. C. Sirtori, S. Barbieri, and R. Colombelli, Wave engineering with terahertz quantum cascade lasers, Nature Photon. 7, 691-701 (2015).
  18. H. Li, J. M. Manceau, A. Andronico, V. Jagtap, C. Sirtori, L. H. Li, E. H. Linfield, A. G. Davies, and S. Barbieri, Coupled-cavity terahertz quantum cascade lasers for single mode operation, Appl. Phys. Lett, 104, 241102 (2014)
  19. C. Sirtori, S. Barbieri, R. Colombelli, Wave engineering with terahertz quantum cascade lasers, Nature Photon. 7, 691 (2013)
  20. A. Calvar, M. Amanti, M. Renaudat St-Jean, S. Barbieri, A. Bismuto, E. Gini, M. Beck, J. Faist, and C. Sirtori, High freqiency modulation of mid-infrared quantum cascade lasers embedded into microstrip line, Appl. Phys. Lett. 102, 181114 (2013)
  21. Mr Ravaro, V. JagtapG. Santarelli,C. Sirtori, L. H. Li, S. P. Khanna, E. H. LinfieldS. Barbieri, Continuous-wave coherent imaging with terahertz quantum cascade lasers using electro-optic harmonic samplingAppl. Phys. Lett. 102, 091107 (2013)
  22. Marco Ravaro, V. Jagtap,C. Manquest, P. Gellie, G. Santarelli, C. Sirtori, S.P. Khanna, d,S. Barbieri Spectral Properties of THz Quantum-Cascade Lasers: Frequency Noise, Phase-Locking and Absolute Frequency MeasurementJ. Infr., Mill. Ter. Wav. 34, 342 (2013)
  23. M. Ravaro, P. Gellie, G. Santarelli, C. Manquest, P. Filloux, C. Sirtori, J-F. Lampin, G. Ferrari, S.P. Khanna, H. Linfield, E. H. Beere, D. A. Ritchie, and S. Barbieri, Stabilisation and mode-locking of terahertz quantum cascade lasers, IEEE J. Sel. T op. Quantum Electron. 19, 8501011 (2013)
  24. M. Ravaro, S. Barbieri, G. Santarelli, V. Jagtap, C. Manquest, C. Sirtori, S. P. Khanna, and E. H. Linfield, Measurement of the intrinsic linewidth of terahertz quantum cascade lasers using a near-IR frequency comb, Opt. Expr, 20 25654 (2012)
  25. M. Ravaro, C. Manquest, C. Sirtori, S. Barbieri, G. Santarelli, K. Blary, J.-F. Lampin, S. P. Khanna, and E. H. Linfield, Phase-locking of a 2.5 THz quantum cascade laser to a frequency comb using a GaAs photomixer, Opt. Lett.., 36 3969 (2011)
  26. R. Rungsawang, N. Jukam, J. Maysonnave, P. Cavalié, J. Madéo, D. Oustinov, S. S. Dhillon, J. Tignon, P. Gellie, C. Sirtori, S. Barbieri, H. E. Beere, and D. A. Ritchie, Gain enhancement in a terahertz quantum cascade laser with parylene antireflection coatings, Appl. Phys. Lett, 98, 101102 (2011)
  27. S. Barbieri, M. Ravaro, P. Gellie, G. Santarelli, C. Manquest, C. Sirtori, S. P. Khanna, E. H. Linfield, and A. G. Davies, Coherent sampling of active mode-locked terahertz quantum cascade lasers and frequency synthesis, Nature Photon. 5, 306 (2011)
  28. S. S. Dhillon, S. Sawallich, N. Jukam, D. Oustinov, J. Madéo, S. Barbieri, P. Filloux, C. Sirtori, X. Marcadet, and J. Tignon, Integrated terahertz pulse generation and amplification in quantum cascade lasers, Appl. Phys. Lett. 96, 061107 (2010)
  29. P. Gellie, S. Barbieri, J-F. Lampin, P. Filloux, C. Manquest, C. Sirtori, I. Sagnes, S. P. Khanna, E. H. Linfield, A. G. Davies, H. Beere, D. Ritchie, Injection-locking of terahertz quantum cascade lasers up to 35GHz using RF amplitude modulationOpt. Expr. 18, 20799-20816 (2010)
  30. S. Barbieri, P. Gellie, G. Santarelli, L. Ding, W. Maineult, C. Sirtori, R. Colombelli, H. E. Beere, and D. A. Ritchie, Phase locking of a 2.7THz quantum cascade laser to a mode-locked Er-fiber laser Nature Photon, 4, 636 (2010)
  31. D. Oustinov, N. Jukam, R. Rungsawang, J. Madéo, S. Barbieri, P. Filloux, C. Sirtori, X. Marcadet, J. Tignon, S. Dhillon, Phase seeding of a terahertz quantum cascade laser, Nature Communications 1, 69 (2010)
  32. Y. Chassagneux, R. Colombelli, W. Maineult, S. Barbieri, S. P. Khanna, E. H. Linfield, and A. G. Davies. Graded photonic-crystal terahertz quantum cascade lasers, Appl. Phys. Lett, 96, 031104 (2010)
  33. W. Maineult, L. Ding, P. Gellie, P. Filloux, C. Sirtori, S. Barbieri, J-F. Lampin, T. Akalin, H. E. Beere, and D. A. Ritchie. Microwave modulation of THz quantum cascade lasers: a transmission-line approach, Appl. Phys. Lett, 96, 021108 (2010)
  34. N. Jukam, S. S. Dhillon, D. Oustinov, J. Madeo, C. Manquest, S. Barbieri, C. Sirtori, S. P. Khanna, E. H. Linfield, A. G. Davies, and J. Tignon. Terahertz amplifier based on gain switching in a quantum cascade laser, Nature Phot. 3, 715 (2009)
  35. Y. Chassagneux, R. Colombelli, W. Maineult, S. Barbieri, S. P. Khanna, E. H. Linfield, and A. G. Davies. Predictable surface emission patterns in terahertz photonic-crystal quantum cascade lasers, Optics Express, 17, 9491 (2009).
  36. Y. Chassagneux, R. Colombelli, W. Maineult, S. Barbieri, H. E. Beere, and D. A. Ritchie: Electrically pumped photonic crystal terahertz semiconductor lasers controlled by boundary conditions, Nature, 457, 174 (2009)
  37. P. Gellie, W. Maineult, A. Andronico, P. Filloux, G. Leo, C. Sirtori, S. Barbieri, Y. Chassagneux, J. R. Coudevylle, R. Colombelli, S. P. Khanna, E. H. Linfield, and A. G. Davies: Effect of transverse mode structure on the far-field pattern of meta-metal terahertz quantum cascade lasers, J. Appl. Phys, 104, 124513 (2008)
  38. W. Maineult, P. Gellie, A. Andronico, P. Filloux, G. Leo, C. Sirtori, S. Barbieri, E. Peytavit, T. Akalin and J-F. Lampin, J. Alton, H. Beere, and D. R. Ritchie: Double metal quantum cascade lasers with micro-TEM horn antenna, Appl. Phys. Lett 93, 183508 (2008)
  39. R. Rungsawang, O. Marshall, J. R. Freeman, H. E. Beere, S. Malik, J. Alton, S. Barbieri, and D. A. Ritchie: Intensity detection of terahertz quantum cascade laser radiation using electro-optic sampling, Appl. Phys. Lett 93, 191111 (2008)
  40. N. Jukam, S. Dhillon, Z. Y. Zhao, G. Duerr, J. Armijo, N. Sirmons, S. Hameau, S. Barbieri, P. Filloux, C. Sirtori, J. Tignon: Investigation of spectral gain narrowing in quantum cascade lasers using Terahertz time domain spectroscopy, Appl. Phys. Lett 93, 101115 (2008)
  41. O. P. Marshall, J. Alton, C. H. Worrall, H. E. Beere, D. Ritchie, S. Barbieri: Distributed feedback THz quantum cascade lasers using thin double-metallic gratings, IEEE Phot. Technol. Lett. 20, p. 857 (2008)
  42. M. Hajenius, P. Khosropanah, J.N. Hovenier, J.R. Gao, T.M. Klapwijk, S. Barbieri, S. Dhillon, P. Filloux, C. Sirtori, D.A. Ritchie, and H.E. Beere: Surface plasmon quantum cascade lasers as terahertz local oscillators, Opt. Lett. 33, p. 312 (2008)
  43. N. Jukam, S. Dhillon, Z. Y. Zhao, G. Duerr, J. Armijo, N. Sirmons, S. Hameau, S. Barbieri, P. Filloux, C. Sirtori, J. Tignon: Gain Measurements of THz quantum cascade lasers using THz time domain spectroscopy,IEEE Journal of Sel. Top. in Quantum Elec, 14, p436 (2008)
  44. S. Barbieri, W.d Maineult, S.p S. Dhillon, C. Sirtori, J. Alton, N. Breuil, H. E. Beere, and D. A. Ritchie: 13 GHz direct modulation of terahertz quantum cascade lasers, Appl. Phys. Lett. 91, 143510 (2007)
  45. Y. Chassagneux, J. Palomo, R. Colombelli, S. Barbieri, Dhillon, C. Sirtori, H. Beere, J. Alton, and D. Ritchie, Low threshold THz QC lasers with thin core regions , Electron. Lett. 43, 205 (2007)
  46. Dhillon, S. S., Sirtori, J. Alton, C., Barbieri, S., de Rossi, A., M., Beere, H. E. and Ritchie, D. A.: THz transfer onto a telecom optical carrier, Nature Photon, 1, 411 (2007)
  47. M. Vitiello, G. Scamarcio, V. Spagnolo, C. Worrall, H. Beere, D. Ritchie, C. Sirtori, J.Alton. S. Barbieri:Subband electronic temperatures and electron-lattice relaxation in THz quantum cascade lasers with different conduction band offsets, Appl. Phys. Lett. 89, 131114 (2006)
  48. M. Vitiello, G. Scamarcio, V. Spagnolo, J.Alton. S. Barbieri, C. Worrall, H. Beere, D. Ritchie, C. Sirtori,Thermal properties of THz quantum cascade lasers based on different optical waveguide configurations, Appl. Phys. Lett. 89, 021111 (2006)
  49. K. L. Nguyen, M. L. Johns, L. Gladden, C. Worrall, P. Alexander, H. Beere, M. Pepper, D. A. Ritchie, J. Alton, S. Barbieri, E. Linfield: Three dimensional imaging with a THz quantum cascade laser, Opt. Expr. 14, 2123 (2006)
  50. C. Worrall, J. Alton, M. Houghton, S. Barbieri, C. Sirtori, H. Beere, D. Ritchie:Continuous wave operation of a superlattice quantum cascade laser emitting at 2 THz, Opt. Expr. 14, 171 (2006)
  51. S. Barbieri, J. Alton, C. Baker, T. Lo, H. Beere, D. Ritchie:Imaging with THz quantum cascade lasers using a Schottky diode mixer, Opt. Expr. 13, 6497 (2005)
  52. S. S. Dhillon, C. Sirtori, S. Barbieri, H. Beere, D. Ritchie: THz Sideband generation at telecom wavelengths in a GaAs based Quantum Cascade Laser, Appl. Phys. Lett. 87, 071101 (2005)
  53. J. Alton, S. S. Dhillon, S. Barbieri, A. de Rossi, M. Calligaro, H. E. Beere, E. H. Linfield, D. A . Ritchie, C. Sirtori:Ultra low threshold current buried-waveguide THz quantum cascade lasers, Appl. Phys. Lett. 87, 071107 (2005)
  54. J. Alton, S. S. Dhillon, A. de Rossi, M. Calligaro, H. E. Beere, S. Barbieri, E. H. Linfield, D. A . Ritchie, C. Sirtori:Buried waveguides in THz quantum cascade lasers based on two- dimensional surface plasmon modes, Appl. Phys. Lett, 86, 071109 (2005)
  55. S. Barbieri, J. Alton, J. Fowler, H. E. Beere, E. H. Linfield, D. A . Ritchie:2.9 THz quantum cascade laser operating up to 70K in continuous wave, Appl. Phys. Lett, 85, 1674 (2004).
  56. S. Barbieri, J. Alton, H. E. Beere, E. H. Linfield, S. Withington, D. A . Ritchie, A. Lassaad, G. Scalari, J. Faist:Difference frequency mixing of two far-infrared quantum cascade lasers using a point-contact Schottky diode, Opt. Lett. 29, 1632 (2004)
  57. J. Alton, S. Barbieri, J. Fowler, J. Muscat, H. E. Beere, E. H. Linfield, A. G. Davies, D. A . Ritchie, R. Khöler, and A. Tredicucci:Magnetic-field in-plane quantization and tuning of population inversion in a THz superlattice quantum cascade laser, Phys. Rev. B Rapid Comm. 68, 081303(R) (2003).
  58. S. Barbieri, J. Alton, S. S. Dhillon, H. E. Beere, M. Evans, E. H. Linfield, A. G. Davies, D. A . Ritchie, R. Khöler, and A. Tredicucci:Continuous wave operation of THz Quantum Cascade Lasers, IEEE J. Quantum Electron. 39 (4), 586 (2003).
  59. S. Barbieri, J. P. Pellaux, E. Studemann, and D. Rosset:Gas detection with quantum cascade lasers: an adapted photoacoustic sensor based on Helmholtz resonance, Rev. Sci. Instrum. 73 (6), 2458 (2002).
  60. F. Eickemeyer, K. Reimann, M. Woerner, T. Elsaesser, S. Barbieri, C. Sirtori, G. Strasser, T. Müller, R. Bratschnitsch, and K. Unterrainer:Ultrafast coherent electron transport in semiconductor quantum cascade structures, Phys. Rev Lett, 89 (4), 47402 (2001).
  61. F. Eickemeyer, K. Reimann, M. Woerner, T. Elsaesser, S. Barbieri, C. Sirtori, G. Strasser, T. Müller, R. Bratschnitsch, and K. Unterrainer:Ultrafast coherent electron transport in GaAs/AlGaAs quantum cascade structures, Physica B: Condensed Matter, 314 (1-4) 1-4, 314 (2002).
  62. S. Barbieri, C. Sirtori, H. Page, M Stellmacher, and J. Nagle:Design strategies for GaAs- based unipolar lasers: optimum injector-active region coupling via resonant tunneling , Appl. Phys. Lett. 78 (3), 282 (2001).
  63. S. Blaser, L. Diehl, M. Beck, J. Faist, U. Oesterle, J. H. Xu, S. Barbieri and F. Beltram:Characterization and modeling of quantum cascade laser based on photon-assisted tunneling transition, IEEE J. Quantum Electron, 37 (3), 448 (2001) .
  64. P. Kcruck, H. Page, C. Sirtori, S. Barbieri, M Stellmacher, and J. Nagle:Improved temperature performance of Al0.33Ga0.67As/GaAs quantum cascade lasers with emission wavelenght at 11m, Appl. Phys. Lett. 76 (23), 3340 (2000).
  65. F. Eickemeyer, R. A. Kaindl, M. Woerner, T. Elsaesser, S. Barbieri, P. Kruck, C. Sirtori, J. Nagle: Large electrically induced transmission changes of GaAs/AlGaAs quantum cascade structures, Appl. Phys. Lett, 76 (22), 3254 (2000).
  66. S. Barbieri, C. Sirtori, P. Kcruck, H. Page, J. Nagle, M. Beck, J. Faist, and U. Oesterle: Gain measurements on GaAs based Quantum Cascade Lasers using a two section cavity technique, IEEE J. Quantum Electron. 36 (6), 736 (2000).
  67. H. Page, C. Sirtori, P. Kcruck, S. Barbieri , M Stellmacher, and J. Nagle: High Peak Power (1.1 W) AlGaAs Quantum Cascade Laser, Electron. Lett. 35 (21), 1848 (1999)
  68. C. Sirtori, P. Kcruck, S. Barbieri, H. Page, M. Beck, J. Faist, U. Oesterle, and J. Nagle: Low loss Al free wavegudes for unipolar semiconductor lasers, Appl. Phys. Lett. 75, 3911 (1999).
  69. H. Page, C. Sirtori, S. Barbieri, P. Kcruck, M Stellmacher, and J. Nagle: Design and operation of mid-infrared light emitting devices (l = 11mm) based on a chirped superlattice,Semicond. Sci. Technol. 15, 44 (2000).
  70. C. Sirtori, S. Barbieri, P. Kcruck , P. Collot, J. Nagle, M. Beck, J. Faist and U. Oesterle: Influence of DX centers on the performance of Unipolar Semiconductor Lasers based on GaAs/AlxGa1-xAs, IEEE Photon. and Technol. Lett, 11, 1090 (1999)
  71. S. Barbieri, F. Rossi, and F. Beltram: Microscopic theory of vertical transport phenomena in semiconductor heterostructures : interplay between two- and three- dimensional hot-carrier relaxation, Phys. Rev. B 60 (3), 1953 (1999).
  72. C. Sirtori, P. Kcruck, S. Barbieri, P. Collot, J. Nagle, M. Beck, J. Faist and U. Oesterle: GaAs/AlxGa1-xAs Quantum Cascade Lasers, Appl. Phys. Lett. 73 (24), 3486 (1998).
  73. S. Barbieri, F. Mango, F. Beltram, M. Lazzarino and L. Sorba: Broad-band microwave detection with a novel 2-D hot-electron device, Superlatt. and Microstr. 23 (5), 1079 (1998).
  74. S. Barbieri, F. Mango, F. Beltram, M. Lazzarino and L. Sorba: A new hot-electron multiquantum well microwave detector operating at room temperature, Appl. Phys. Lett. 67 (2), 250 (1995).