Tenure Track Assistant Professor
EPFL STI IEL LWE
ELB 033 (Bâtiment ELB)
+41 21 693 56 88
+41 21 693 26 83
Office: ELB 033
EPFL > STI > IEM > LWE
Web site: Web site: https://lwe.epfl.ch
BiographyRomain Fleury is currently Tenure-Track Assistant Professor at EPFL, where he leads the Laboratory of Wave Engineering. He has obtained the Ph.D. degree in Electrical and Computer Engineering from the University of Texas at Austin in 2015, working with Prof. Andrea Alù. In 2016, he was a Marie-Curie Post-Doctoral Fellow at ESPCI Paris-Tech and CNRS Langevin Institute, in Paris, working with Prof. Mathias Fink. He started at EPFL in 2017, in the Institute of Electrical and Micro Engineering, within the EPFL School of Engineering.His research interests include a wide variety of topics in the field of wave physics and engineering, including periodic structures, nonreciprocal wave propagation, classical topological insulators, active and time-modulated metamaterials, etc. He has co-authored more than 50 articles in scientific journals, including Science, Nature, and various Physical Review journals. He has received in 2018 an Eccellenza grant from the SNSF, and in 2021 an ERC Starting grant. He has served as Technical Program Committee chair of the European conference Eucap 2019 (1200 submissions), and editorial board member of the New Journal of Physics (IOP). He is the recipient of various teaching awards, including the 2019 STI Polysphere award and a IEL best teacher award. Finally, he is the co-founder of Minwave, a company supported by the European Space Agency, selling miniaturized microwave devices based on an invention patented by his laboratory. Minwave received various tech transfer awards, including ESA-BIC CH, FIT and Venture Kick. More information is available at https://www.epfl.ch/labs/lwe/.
International Phononics Society
AgePoly - EPFL student association
European Research Council
Institute of Electrical Engineering
Swiss National Science Foundation
Ultrabroadband sound control with deep-subwavelength plasmacoustic metalayersNature Communications. 2023-05-19. DOI : 10.1038/s41467-023-38522-5.
Observation of non-reciprocal harmonic conversion in real soundsCommunications Physics. 2023-05-06. DOI : 10.1038/s42005-023-01217-w.
Anomalous topological waves in strongly amorphous scattering networksScience Advances. 2023-03-22. DOI : 10.1126/sciadv.adg3186.
Topological MIMO Optical Signal ProcessingIeee Photonics Technology Letters. 2023-02-15. DOI : 10.1109/LPT.2022.3233702.
Extreme Spatial Dispersion in Nonlocally Resonant Elastic MetamaterialsPhysical Review Letters. 2023. DOI : 10.1103/PhysRevLett.130.207201.
Parallel temporal signal processing enabled by polarization-multiplexed programmable THz metasurfacesOptics Express. 2022-12-05. DOI : 10.1364/OE.471338.
Dipole polarizability of time-varying particlesNew Journal of Physics. 2022-06-06. DOI : 10.1088/1367-2630/ac6b4c.
Effect of mechanical nonlinearity on the electromagnetic response of a microwave tunable metamaterialJournal Of Physics D-Applied Physics. 2022-05-19. DOI : 10.1088/1361-6463/ac5209.
Electromagnetic wave-based extreme deep learning with nonlinear time-Floquet entanglementNature Communications. 2022-05-12. DOI : 10.1038/s41467-022-30297-5.
Parallel wave-based analog computing using metagratingsNanophotonics. 2022-03-24. DOI : 10.1515/nanoph-2021-0710.
Effects of resonator geometry and substrate stiffness on the tunability of a deformable microwave metasurfaceAEU - International Journal of Electronics and Communications. 2022-01-25. DOI : 10.1016/j.aeue.2022.154123.
Ultra-Small Bent Meta-Waveguide Filters2022-01-01. 16th European Conference on Antennas and Propagation (EuCAP), Madrid, SPAIN, Mar 27-Apr 01, 2022. DOI : 10.23919/EuCAP53622.2022.9769033.
Switchable and Simultaneous Spatiotemporal Analog Computing with Computational Graphene-based MultilayersCarbon. 2022. DOI : 10.1016/j.carbon.2021.10.001.
Non-Hermitian time evolution: From static to parametric instabilityPhysical Review A. 2021-10-28. DOI : 10.1103/PhysRevA.104.042225.
Superior robustness of anomalous non-reciprocal topological edge statesNature. 2021-10-13. DOI : 10.1038/s41586-021-03868-7.
Subwavelength Metawaveguide Filters and MetaportsPhysical Review Applied. 2021-10-08. DOI : 10.1103/PhysRevApplied.16.044010.
Time-Varying Components for Enhancing Wireless Transfer of Power and InformationPhysical Review Applied. 2021-07-07. DOI : 10.1103/PhysRevApplied.16.014017.
Non-local odditiesNature Physics. 2021-06-09. DOI : 10.1038/s41567-021-01281-5.
The sound of Weyl hingesNature Materials. 2021-05-27. DOI : 10.1038/s41563-021-01018-y.
Reciprocal Metasurfaces for On-axis Reflective Optical ComputingIEEE Transactions on Antennas and Propagation. 2021-05-17. DOI : 10.1109/TAP.2021.3078521.
Parallel Analog Computing Based on a 2×2 Multiple-Input Multiple-Output Metasurface Processor With Asymmetric ResponsePhysical Review Applied. 2021-04-07. DOI : 10.1103/PhysRevApplied.15.044015.
Multifunctional Hyperelastic Structured Surface for Tunable and Switchable TransparencyApplied Sciences. 2021-03-04. DOI : 10.3390/app11052255.
Asymmetric Metal-Dielectric Metacylinders and Their Potential Applications From Engineering Scattering Patterns to Spatial Optical Signal ProcessingPhysical Review Applied. 2021-03-03. DOI : 10.1103/PhysRevApplied.15.034010.
Subwavelength Acoustic Imaging in Far Field by Combining Metamaterials and Deep Learning2021-01-01. 15th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials), ELECTR NETWORK, Sep 20-25, 2021. p. X308-X310. DOI : 10.1109/Metamaterials52332.2021.9577076.
Miniaturized Metamaterial Filters Compatible with Standard Waveguide Technology2021-01-01. 15th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials), ELECTR NETWORK, Sep 20-25, 2021. p. X197-X199. DOI : 10.1109/Metamaterials52332.2021.9577074.
Ultra-Compact Ka-band Metamaterial Waveguide Filters, Fabricated by Lost-Wax Casting2021-01-01. 51st European Microwave Conference (EuMC), London, ENGLAND, Apr 04-06, 2022. p. 269-272. DOI : 10.23919/EuMC50147.2022.9784229.
Microwave or millimeter wave passive components or devicesUS2023109939 ; EP4128433 ; CN115699446 ; WO2021191794 . 2021.
Electromagnetic waves under nonstationary conditions, the connection with parity-time symmetry and studies on resonant systemsLausanne, EPFL, 2021. DOI : 10.5075/epfl-thesis-9274.
Topology and broken HermiticityNature Physics. 2021. DOI : 10.1038/s41567-020-01093-z.
Analogue computing with metamaterialsNature Reviews Materials. 2021. DOI : 10.1038/s41578-020-00243-2.
Topological wave insulators: a reviewComptes Rendus. Physique. 2020-11-03. DOI : 10.5802/crphys.3.
Topological optomechanically induced transparencyOptics Letters. 2020-10-23. DOI : 10.1364/OL.410002.
Hermitian formulation of multiple scattering induced topological phases in metamaterial crystalsPhysical Review B. 2020-10-13. DOI : 10.1103/PhysRevB.102.134303.
Tilted double Dirac cone and anisotropic quantum-spin-Hall topological insulator in mechanical granular grapheneNew Journal of Physics. 2020-10-07. DOI : 10.1088/1367-2630/abb862.
Experimental observation of the acoustic Z2 Weyl semimetallic phase in synthetic dimensionsPhysical Review B. 2020-08-27. DOI : 10.1103/PhysRevB.102.064309.
Far-Field Subwavelength Acoustic Imaging by Deep LearningPhysical Review X. 2020-08-07. DOI : 10.1103/PhysRevX.10.031029.
Zero-Index Weyl MetamaterialsPhysical Review Letters. 2020-07-28. DOI : 10.1103/PhysRevLett.125.054301.
Robustness in Subwavelength Locally-Resonant Metamaterial Waveguides2020-07-08. 2020 14th European Conference on Antennas and Propagation (EuCAP), Copenhagen, Denmark, March 15-20, 2020. p. 1-4. DOI : 10.23919/EuCAP48036.2020.9135562.
A Subwavelength Microwave Bandpass Filter Based on a Chiral Waveguide2020-07-08. 2020 14th European Conference on Antennas and Propagation (EuCAP), Copenhagen, Denmark, March 15-20, 2020. p. 1-5. DOI : 10.23919/EuCAP48036.2020.9135288.
Instantaneous radiation from time-varying electric and magnetic dipolesPhysical Review A. 2020-07-06. DOI : 10.1103/PhysRevA.102.013503.
Nonreciprocity in acoustic and elastic materialsNature Reviews Materials. 2020-07-06. DOI : 10.1038/s41578-020-0206-0.
Disorder‐Induced Signal Filtering with Topological MetamaterialsAdvanced Materials. 2020-06-02. DOI : 10.1002/adma.202001034.
Electromagnetic fields in a time-varying medium: Exceptional points and operator symmetriesIEEE Transactions on Antennas and Propagation. 2020-05-29. DOI : 10.1109/TAP.2020.2996822.
Improving sound absorption through nonlinear active electroacoustic resonatorsPhysical Review Applied. 2020-01-10. DOI : 10.1103/PhysRevApplied.13.014018.
Robust Fano resonance in a topological mechanical beamPhysical Review B. 2020-01-03. DOI : 10.1103/PhysRevB.101.024101.
Parallel Optical Spatial Signal Processing Based on 2x2 MIMO Computational Metasurface2020-01-01. 14th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials), ELECTR NETWORK, Sep 28-Oct 03, 2020. p. 195-197. DOI : 10.1109/Metamaterials49557.2020.9285089.
From Polarizability to Effective Permittivity of Time-Varying Materials2020-01-01. 14th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials), ELECTR NETWORK, Sep 28-Oct 03, 2020. p. 6-8. DOI : 10.1109/Metamaterials49557.2020.9285035.
Analog signal processing with topological metamaterialsLausanne, EPFL, 2020. DOI : 10.5075/epfl-thesis-8978.
Non-reciprocal manipulation of subwavelength fields in locally-resonant metamaterial crystalsIEEE Transactions on Antennas and Propagation. 2020. DOI : 10.1109/TAP.2019.2925927.
Active acoustic resonators with reconfigurable resonance frequency, absorption, and bandwidthPhysical Review Applied. 2019-11-27. DOI : 10.1103/PhysRevApplied.12.054064.
Solving differential equations with topological acoustic metamaterialsMetamaterials 2019, The 13th International Congress on Artificial Materials for Novel Wave Phenomena, Roma, Italy, September 16-21, 2019.
Robust Wave Transport at a Subwavelength Scale with Chiral Metamaterials21st International Conference on Electromagnetics in Advanced Applications (ICEAA 2019), Granada, Spain, September 9-13, 2019.
Active Acoustic Resonators and their Applications to Loss-Immune, Reconfigurable, or Dynamic Metamaterials2019 International Congress on Ultrasonics, Bruges, Belgium, September 3-6, 2019.
Slow light engineering in resonant photonic crystal line-defect waveguidesOptics Express. 2019-08-30. DOI : 10.1364/OE.27.026229.
Observation of topological gravity-capillary waves in a water wave crystalNew Journal of Physics. 2019-08-19. DOI : 10.1088/1367-2630/ab376a.
Nonlinear Second-Order Topological InsulatorsPhysical Review Letters. 2019-08-02. DOI : 10.1103/PhysRevLett.123.053902.
Acoustic rat-race coupler and its applications in non-reciprocal systemsThe Journal of the Acoustical Society of America. 2019-07-31. DOI : 10.1121/1.5115020.
Active Electroacoustic Resonators and their Applications to Non-Hermitian AcousticsMETA 2019, the 10th International Conference on Metamaterials, Photonic Crystals and Plasmonics, Lisbon, Portugal, July 23-26, 2019.
Acoustic Topological Fano ResonancesMETA 2019, the 10th International Conference on Metamaterials, Photonic Crystals and Plasmonics, Lisbon, Portugal, July 23-26, 2019.
Acoustic birefringence via non-Eulerian metamaterialsJournal of Applied Physics. 2019-07-18. DOI : 10.1063/1.5090839.
Quantitative robustness analysis of topological edge modes in C6 and valley-Hall metamaterial waveguidesNanophotonics. 2019-07-11. DOI : 10.1515/nanoph-2019-0137.
Introduction to the special issue on non-reciprocal and topological wave phenomena in acousticsJournal Of The Acoustical Society Of America. 2019-07-01. DOI : 10.1121/1.5119133.
Extraordinary wave dynamics in time-Floquet acoustic systemsMETA 2018 - The 9thInternational Conference on Metamaterials, Photonic Crystals and Plasmonics, Marseille, June 24 - July 1, 2018.
Non-Reciprocal and Topological Wave Phenomena at the Sub-Wavelength ScalePhotonics and Electromagnetics Research Symposium, Rome, Italy, June 17-20, 2019.
Chiral Metamaterials for a Robust Waveguiding SchemePhotonics and Electromagnetics Research Symposium, Rome, Italy, June 17-20, 2019.
Acoustic Topological Fano ResonancesPhotonics and Electromagnetics Research Symposium, Rome, Italy, June 17-20, 2019.
Enhancing subwavelength image recognition with resonant metamaterial lensesURSI Commission B International Symposium on Electromagnetic Theory (EMTS 2019), San Diego, United Stated, 27-31 May 2019.
Subwavelength robust waveguiding with chiral metamaterial waveguides“2019 URSI Commission B International Symposium on Electromagnetic Theory” (EMTS 2019), San Diego, United Stated, 27-31 May 2019.
Topological Analog Signal ProcessingNature Communications. 2019-05-03. DOI : 10.1038/s41467-019-10086-3.
From Non-reciprocal Acoustic Meta-Atoms to Chern Acoustic Topological InsulatorsMeeting on Topological Mechanics and Fluids, Lyon, France, April 30, 2019.
Active Times for Acoustic MetamaterialsReviews in Physics. 2019-04-11. DOI : 10.1016/j.revip.2019.100031.
Coupled-mode theory for stationary and nonstationary resonant sound propagationWave Motion. 2019-03-28. DOI : 10.1016/j.wavemoti.2019.03.011.
Topological Fano ResonancesPhysical Review Letters. 2019-01-08. DOI : 10.1103/PhysRevLett.122.014301.
Robust wave transport at subwavelength scale with chiral metamaterials2019-01-01. 21st International Conference on Electromagnetics in Advanced Applications (ICEAA), Granada, SPAIN, Sep 09-13, 2019. p. 773-773. DOI : 10.1109/ICEAA.2019.8879328.
Subwavelength robust waveguiding with chiral metamaterial waveguides2019-01-01. URSI International Symposium on Electromagnetic Theory (EMTS), San Diego, CA, May 27-31, 2019. DOI : 10.23919/URSI-EMTS.2019.8931524.
Experimental Observation of Topological Fano Resonances for Audible Sound23rd International Congress on Acoustics ICA 2019, Aachen, Germany, September 9-13, 2019.
Introduction to topological wave phenomena and examples in acousticsRencontre thématique : Ondes et topologie, Besançon, France, March 28-29, 2019.
From Non-reciprocal Acoustic Meta-Atoms to Time-Floquet Acoustic Topological InsulatorsStewart Blusson Quantum Matter Institute Workshop on Synthetic Topological Matter, Vancouver, Canada, February 18-20, 2019.
Chiral Waveguides for Robust Waveguiding at the Deep Subwavelength ScalePhysical Review Applied. 2018-11-30. DOI : 10.1103/PhysRevApplied.10.054069.
Development of a wideband steerable acoustic metasurface composed of active electroacoustic resonators with COMSOLCOMSOL Conference 2018, Lausanne, Switzerland, October 22-24, 2018.
Electromagnetic Waves in a Time Periodic Medium With Step-Varying Refractive IndexIEEE Transactions on Antennas and Propagation. 2018-10-13. DOI : 10.1109/TAP.2018.2858200.
Non-Hermitian metamaterials for light and soundMetanano 2018 - International Conference on Metamaterials and Nanophotonics, Sochi, Russia, 17-21 September 2018.
Crystalline metamaterials for topological properties at the subwavelength scaleMetamaterials 2018 - The 12th International Congress on Artificial Materials for Novel Wave Phenomena, Espoo, Finland, 27 August - 1 September 2018.
Acoustic Analogues of High-Index Optical Waveguide DevicesScientific Reports. 2018-07-10. DOI : 10.1038/s41598-018-28679-1.
Performing mathematical operations using high-index acoustic metamaterialsNew Journal of Physics. 2018-07-04. DOI : 10.1088/1367-2630/aacba1.
Doppler-Based Acoustic GyratorApplied Sciences. 2018-07-03. DOI : 10.3390/app8071083.
Constant-pressure sound waves in non-Hermitian disordered mediaNature Physics. 2018-07-02. DOI : 10.1038/s41567-018-0188-7.
Exotic Properties of Spoof Surface Plasmon Polaritons in Metamaterial Crystals2nd URSI Atlantic Radio Science Meeting, AT-RASC 2018, Gran Canaria, Spain, May 29 2018.
Discrete constant pressure waves in non-Hermitian disordered acoustic metamaterialsThe UK Institute of Acoustics Workshop 2019, London Branch, London, UK.
Ondes acoustiques à amplitude constante dans des milieux désordonnés non-Hermitiens14ème Congrès Français d'Acoustique (CFA 2018), Le Havre, France, April 23-27, 2018.
Topological wave transport in acoustic systeThe Exeter Acoustic Metamaterials Meeting - XAM3 2018, Exeter, UK, 16th - 17th April 2018.
Nonreciprocal Gain in Non-Hermitian Time-Floquet SystemsPhysical Review Letters. 2018-02-22. DOI : 10.1103/PhysRevLett.120.087401.
Non-reciprocal optical mirrors based on spatio-temporal acousto-optic modulationJournal of Optics. 2018-02-12. DOI : 10.1088/2040-8986/aaaa3e.
Topological spoof-plasmon polaritons for robust waveguiding at the subwavelength scaleNature Conference on Nanophotonics and Integrated Photonics, Nanjing, China, November 9-11, 2018.
Constant pressure sound waves in non-Hermitian disordered metamaterialsMetamaterials 2018, Espoo, Finland, 27 August - 1 September 2018.
Discrete constant pressure waves in non-Hermitian disordered metamaterialsInternational Conference on Nonlinear Localization in Lattices (NLL - 2018), Spetses Island, Greece, 18-22 June 2018.
Développement et validation d'une métasurface acoustique orientable large bande composée de résonateurs électroacoustiques actifs14e Congrès Français d'Acoustique (CFA2018), Le Havre, 23-27 avril 2018.
Parametric amplification and bidirectional invisibility in PT-symmetric time-Floquet systemsPhysical Review A. 2018. DOI : 10.1103/PhysRevA.97.013839.
Zero refractive index in time-Floquet acoustic metamaterialsJournal of Applied Physics. 2018. DOI : 10.1063/1.5006542.
Toward Wideband Steerable Acoustic Metasurfaces with Arrays of Active Electroacoustic ResonatorsJournal of Applied Physics. 2018. DOI : 10.1063/1.5011380.
Teaching & PhD
Electrical and Electronics Engineering