Alumni
Postdocs:
Alexander Dikopoltsev worked with us until December 2025. He worked primarily on models and experiments on Mid-IR Quantum Walk Combs from ring-QCLs.
Mathieu Bertrand worked with us until June 2025. He worked on all aspects concerning the characterization of Mid-IR QCLs.
Miguel Montesinos Balllester worked with us until 2024. He worked on the fabrication of QCLs for Mid-IR frequency combs and their characterisation.
Nolwenn Le Biavan worked with us until August 2023. She worked on material growth and characterization of active regions of QCLs.
Sergej Markmann worked with us until September 2022. He worked on doppler based spectroscopy and TDS measurement in the THz domain.
Martin Frankié worked with us until August 2022. He worked on improving active regions designs together with simulations tools such as NEGF.
Johannes Hillbrand worked with us until October 2021. He worked on Dual Comb spectroscopy with mid-IR QCLs and passive waveguides.
Bo Meng worked with us until September 2021. He worked on phonon-polariton lasers, Zinc-oxide quantum well devices and ring QCLs.
Ruijun Wang worked with us until January 2021. He worked on tapered QCL frequency combs and passive-active monolithically integrated devices.
Mehran Shahmohammadi worked with us until February 2020. He worked both the mid-infrared and terahertz QCLs.
Shuai Wang worked with us until May 2019. He was focusing on mid-infrared frequency combs.
Elena Mavrona worked with us until March 2019. She worked on THz spectroscopy and characterizations.
Keita Otani worked with us until December 2017. He worked on Raman spectroscoy, phonon-polariton lasers, and QCLs.
Yong Liang worked with us until October 2017. He was focusing on photonic crystal QCLs.
Pierre Jouy worked with us until 2017. He worked on mid-infrared QCLs and frequency combs.
Camille Ndebeka-Bandou worked with us until 2017. She worked on the modeling of phonon-polariton lasers and disorder effects in quantum wells.
Wolf Wüster worked with us until 2017. He worked on the optimisation and dual-comb applications of mid-IR QCLs.
Martin Süess worked with us from June 2014 to September 2016 on the Mirsens II project, developing dual-color MIR-QCLs for sensing.
Romain Peretti worked with us until September 2016 on Mid-IR QCLs, with a focus on photonic crystals.
Fabrizio Castellano worked with us until 2014 on the characterisation of intersubband transitions in quantum wells.
Quiang Liu worked with us until 2014 on THz metamaterials based on graphene.
Laurent Nevou worked with us until 2014 on the intersubband transitions in quantum dots and dashes.
Ph.D. Students:
Lorenzo Graziotto completed his thesis in April 2026, with the title "Control of Quantum Hall Phases with Cavity Vacuum Fields".
Ina Heckelmann completed her thesis in April 2026, with the title "Quantum Walk Combs: Active Mode-Locking in Fast-Gain Ring Lasers".
Alessio Cargioli completed his thesis in March 2026, with the title "Quantum Cascade Lasers Frequency Combs: Design, Growth and Photonic Integration".
Felix Helmrich completed his thesis in December 2025, with the title "Terahertz cavity quantum electrodynamics in van der Waals heterostructures".
Alexa Herter completed her thesis in September 2025, with the title "Integrated Terahertz Photonics and Fermi's Two-Atom Problem".
Barbara Schneider completed her thesis in December 2024, with the title "RF-Modulation and Time-Domain Analysis of Quantum Cascade Laser Frequency Combs".
Josefine Enkner completed her thesis in September 2024, with the title "Modifying the Quantum Hall effect with cavity vacuum fields".
Johan Andberger completed his thesis in 2024, with the title "Terahertz chiral cavities breaking time-reversal symmetry via ultra-strong light-matter interaction".
Paolo Micheletti completed his thesis in June 2024, with the title "Terahertz Quantum Cascade Lasers as Optical Soliton Sources and Ultra-Fast Detectors".
David Stark completed his thesis in November 2023, with the title "Quantum Cascade Lasers Architectures for Dense Integration".
Urban Senica completed his thesis in November 2023, with the title "Broadband integrated photonics with planarized terahertz quantum cascade lasers ".
Philipp Täschler completed his thesis in October 2023, with the title "Short and Ultrashort Pulse Generation from Quantum Cascade Lasers".
Tudor Olariu completed his thesis in December 2022, with the title "Terahertz Quantum Cascade Lasers as Local Oscillators for Astronomy".
Felice Appugliese completed his thesis in May 2022, with the title "Breakdown of topological protection by cavity vacuum fileds in the integer quantum Hall effect".
Fabiana Settembrini completed her thesis in March 2022, with the title "Characterizing the space-time correlation of quantum vacuum".
Shima Rajabali completed her thesis in December 2021, with the title "Ultrastrong light-matter coupling at the nanoscale".
Andres Forrer completed his thesis in December 2021, with the title "RF Control and Coherence Spectroscopy of THz Quantum Cascade Laser Frequency Combs".
Matthew Singleton completed his thesis in October 2021, with the title "Combs in Quantum Cascade Lasers: Linear Chirp and Compression".
Zhixin Wang completed his thesis in October 2021, with the title "Large-area Photonic Crystal Quantum Cascade Lasers and Low-dissipation Quantum Cascade Lasers".
Filippos Kapsalidis completed his thesis in July 2021, with the title "Mid-infrared quantum cascade lasers: dual-wavelength DFBs, dispersion engineering and RF-injection control of frequency combs".
Francesco T. Armand Pilon completed his thesis in 2021, with the title "Strained Germanium Laser".
Yannick Baumgartner completed his thesis in 2020, with the title "A CMOS-Compatible Hybrid III-V/Si Photonic Platform for High-Speed Transceivers".
Lorenzo Bosco completed his thesis in July 2019, with the title "THz Quantum Cascade Laser: astrophysical applications and high temperature performance".
Janine Keller completed her thesis in December 2018, with the title "Ultra-strong light-matter coupling of 2D electron and hole gases with metallic and superconducting metamaterials".
Gian Lorenzo Paravicini Bagliani completed his thesis in December 2018, with the title "Magneto-transport in engineered vacuum fields".
Ileana-Cristina Benea-Chelmus completed her thesis in March 2018. The title of her dissertation is "Terahertz Quantum Optics with Ultra-Short Pulses".
Yves Bidaux completed his thesis in September 2017, with the title "Mode selection and dispersion engineering in mid-infrared quantum cascade lasers".
Johanna Wolf completed her thesis in August 2017. She worked on Mid-infrared QCLs.
Markus Rösch completed his thesis in 2017, with the title "Terahertz Quantum Cascade Laser Based Frequency Combs".
Sabine Riedi finished her thesis in June 2016, on the topic of "Broadband mid-Infrared Quantum Cascade Lasers for Spectroscopic Application in External Cavity".
Curdin Maissen completed his thesis in 2016, with the title "Ultrastrong Light-Matter Coupling with Metasurfaces".
Gustavo Villares completed his thesis in 2016, with the title "Quantum cascade laser frequency combs for spectroscopy applications".
Richard Geiger completed his thesis in 2016, with the title "Direct Band Gap Germanium for Si-compatible Lasing".
Giancarlo Cerulo completed his thesis in 2016, with the title "Antenna Coupled Mid-Infrared Quantum Dot Detectors for Electron Pumping Applications".
Federico Valmorra completed his thesis in 2016, with the title "Terahertz Spectroscopy of Two-Dimensional Nanostructures".
Christopher Bonzon completed his thesis in 2016, with the title "Phase and mode control of structured semiconductor lasers".
Borislav Hinkov completed his thesis in 2015, with the title "Radio-Frequency Modulation of Low-Dissipation Distributed-Feedback Quantum Cascade Lasers".
Markus Geiser completed his thesis in January 2014, with the title "Intersubband Polaritons: Ultra Strong Coupling and THz Emitters".
Dana Turcinkova completed her thesis in 2014, with the title "Terahertz Quantum Cascade Lasers for Astronomical Applications".
Peter Friedli completed his thesis in 2013, with the title "Linear and non-linear spectroscopy of semiconductors using synchrotron infrared".
Andreas Hugi completed his thesis in 2013, with the title "Single-mode and comb operation of broadband quantum cascade lasers".
Romain Terazzi completed his thesis in 2012, with the title "Transport in quantum cascade lasers".
Cristoph Walther completed his thesis in 2011, with the title "Low frequency and circuit based quantum cascade lasers".
Milan Fischer completed his thesis in 2011, with the title "Terahertz quantum cascade lasers based on InGaAs/InAlAs/InP semiconductors".
Alfredo Bismuto completed his thesis in 2011, with the title "Mid-infrared quantum cascade lasers: active medium and waveguide engineering".
Maria Amanti completed her thesis in 2010, with the title "Photonics for THz quantum cascade lasers".
Tobias Gresch completed his thesis in 2009, with the title "Gain and waveguide engineering in mid-infrared quantum cascade lasers".
Andreas Wittmann completed his thesis in 2009, with the title "High-performance quantum cascade laser sources for spectroscopic applications".