Publications (29)
Electrically injected cavity polaritons
Luca Sapienza, Angela Vasanelli, Raffaele Colombelli +5
We have realised a semiconductor quantum structure that produces electroluminescence while operating in the light-matter strong coupling regime. The mid-infrared light emitting dev…
Perfect energy-feeding into strongly coupled systems and interferometric control of polariton absorption
Simone Zanotto, Francesco P. Mezzapesa, Federica Bianco +6
The ability to feed energy into a system, or - equivalently - to drive that system with an external input is a fundamental aspect of light-matter interaction. The key concept in ma…
Detection of strong light-matter interaction in a single nano-cavity with a thermal transducer
Mario Malerba, Simone Sotgiu, Andrea Schirato +11
Recently, the concept of strong light-matter coupling has been demonstrated in semiconductor structures, and it is poised to revolutionize the design and implementation of componen…
Excitons bound by photon exchange
Erika Cortese, Linh Tran, Jean-Michel Manceau +5
In contrast to interband excitons in undoped quantum wells, doped quantum wells do not display sharp resonances due to excitonic bound states. In these systems the effective Coulom…
Mid-IR single- and dual-electro-optic comb generation with an ultrafast modulator
Gia-Long Ngo, Luca Lucia, Stefano Pirotta +9
Mid-infrared (mid-IR) frequency combs are powerful tools for molecular sensing, industrial monitoring, and precision spectroscopy, yet their development beyond 5 um remains limited…
Origin of optical nonlinearity in plasmonic semiconductor nanostructures
Andrea Rossetti, Huatian Hu, Tommaso Venanzi +15
The development of nanoscale nonlinear elements in photonic integrated circuits is hindered by the physical limits to the nonlinear optical response of dielectrics, which requires…
THz ultra-strong light-matter coupling up to 200K with continuously-graded parabolic quantum wells
Paul Goulain, Chris Deimert, Mathieu Jeannin +5
Continuously graded parabolic quantum wells with excellent optical performances are used to overcome the low-frequency and thermal limitations of square quantum wells at terahertz…
Strong coupling of ionising transitions
Erika Cortese, Iacopo Carusotto, Raffaele Colombelli +1
We demonstrate that a ionising transition can be strongly coupled to a photonic resonance. The strong coupling manifests itself with the appearance of a narrow optically active res…
Mid-infrared integrated resonators on a III-V platform with Q-factors beyond half a million
Luca Lucia, Gia Long Ngo, Mathilde Urbain +7
We demonstrate mid-IR integrated race-track resonators on a III-V semiconductor platform,InGaAs core epitaxially grown on InP. We have performed a complete characterization of the…
Intersubband electroluminescent devices operating in the strong coupling regime
Pierre Jouy, Angela Vasanelli, Yanko Todorov +4
We present a detailed study of the electroluminescence of intersubband devices operating in the light-matter strong coupling regime. The devices have been characterized by performi…
Optical properties of metal-dielectric-metal microcavities in the THz frequency range
Yanko Todorov, Lorenzo Tosetto, Jean Teissier +6
We present an experimental and theoretical study of the optical properties of metal-dielectric-metal structures with patterned top metallic surfaces, in the THz frequency range. Wh…
A 5.7 THz GaN/AlGaN quantum cascade detector based on polar step quantum wells
Patrick Quach, Arnaud Jollivet, Andrey Babichev +12
We report on a GaN/AlGaN quantum cascade detector operating in the terahertz spectral range. The device was grown by metal organic chemical vapor deposition on a c-sapphire substra…
Design of mid-IR and THz quantum cascade laser cavities with complete TM photonic bandgap
Michael Bahriz, Orion Crisafulli, Virginie Moreau +2
We present the design of mid-infrared and THz quantum cascade laser cavities formed from planar photonic crystals with a complete in-plane photonic bandgap. The design is based on…
Plasmonic-cavity Modulator for the Mid-IR with a Semi-transparent and Nonlinear Heavily-doped Semiconductor Mirror
Tommaso Venanzi, Raffaella Polito, Andrea Rossetti +15
We present a free-space plasmonic modulator based on a single heavily-doped semiconductor layer. We investigate its ability to modulate both the linear and nonlinear response at mi…
Direct polariton-to-electron tunneling in quantum cascade detectors operating in the strong light-matter coupling regime
Mathurin Lagrée, Mathieu Jeannin, Grégory Quinchard +5
We demonstrate mid-infrared quantum cascade detectors (QCD) operating in the strong light-matter coupling regime. They operate around with a minimum Rabi splitting of…
Unified description of saturation and bistability of intersubband transitions in the weak and strong light-matter coupling regimes
Mathieu Jeannin, Jean-Michel Manceau, Raffaele Colombelli
We propose a unified description of intersubband absorption saturation for quantum wells inserted in a resonator, both in the weak and strong light-matter coupling regimes. We demo…
Cavity modification of magnetoplasmon mode through coupling with intersubband polaritons
Lucy L. Hale, Daniele De Bernardis, Stephan Lempereur +12
We investigate the coupling of a multi-mode metal-insulator-metal cavity to a two-dimensional electron gas (2DEG) in a quantum well in the presence of a strong magnetic field. The…
Intersubband polariton -- LO phonon interaction in mid-infrared non-dispersive cavities: experimental demonstration of spontaneous scattering and perspectives towards polariton lasing
Paul Goulain, Mathieu Jeannin, Stefano Pirotta +5
We report experimental evidence of the interaction between intersubband polaritons and longitudinal optical phonons in non-dispersive mid-infrared cavities, under resonant optical…
III-V on CaF2: a possible waveguiding platform for mid-IR photonic devices
Ngoc-Linh Tran, Mario Malerba, Anne Talneau +5
We developed a technique that enables to replace a metallic waveguide cladding with a low-index (n 1.4) material - CaF2 or BaF2 - that in addition is transparent from the mi…
Low intensity saturation of an ISB transition by a mid-IR quantum cascade laser
Mathieu Jeannin, Eduardo Cosentino, Stefano Pirotta +4
We demonstrate that absorption saturation of a mid-infrared intersubband transition can be engineered to occur at moderate light intensities of the order of 10-20 kWcm an…
Ultrafast (10 GHz) mid-IR modulator based on ultra-fast electrical switching of the light-matter coupling
Mario Malerba, Stefano Pirotta, Guy Aubin +12
We demonstrate a free-space amplitude modulator for mid-infrared radiation (lambda=9.6 um) that operates at room temperature up to at least 20 GHz (above the -3dB cutoff frequency…
A "Janus" double sided mid-IR photodetector based on a MIM architecture
Mario Malerba, Mathieu Jeannin, Stefano Pirotta +6
We present a mid-IR ( 8.3 m) quantum well infrared photodetector (QWIP) fabricated on a mid-IR transparent substrate, allowing photodetection with illumination from…
Mid-Infrared intersubband polaritons in dispersive metal-insulator-metal resonators
Jean-Michel Manceau, Simone Zanotto, Tommaso Ongarello +4
We demonstrate room-temperature strong-coupling between a mid-infrared (=9.9 m) intersubband transition and the fundamental cavity mode of a metal-insulator-metal resonator…
Multiple vibro-polaritons formation from a thin polyethylene film embedded in a resonant mid-infrared cavity
Mario Malerba, Mathieu Jeannin, Paul Goulain +3
We experimentally resolve the dispersion of multiple vibro-polariton modes issued from the strong coupling of different vibrational bands of the methylene group (CH2) in a 2.56…
Ultra-fast amplitude modulation of mid-IR free-space beams at room-temperature
Stefano Pirotta, Ngoc-Linh Tran, Giorgio Biasiol +5
Applications relying on mid-infrared radiation (Mid-IR, 3-30 m) have progressed at a very rapid pace in recent years, stimulated by scientific and technological breakt…
III-nitride on silicon electrically injected microrings for nanophotonic circuits
Farsane Tabataba-Vakili, Stéphanie Rennesson, Benjamin Damilano +14
Nanophotonic circuits using group III-nitrides on silicon are still lacking one key component: efficient electrical injection. In this paper we demonstrate an electrical injection…
Coupling of a surface plasmon with localized subwavelength microcavity modes
Pierre Jouy, Yanko Todorov, Angela Vasanelli +3
Mid-infrared photonic modes of a periodically patterned metal-dielectric-metal structure have been investigated theoretically and experimentally. We have observed an anticrossing b…
Magnetic-field-induced cavity protection for intersubband polaritons
Daniele De Bernardis, Mathieu Jeannin, Jean-Michel Manceau +3
We analyse the effect of a strong perpendicular magnetic field on an intersubband transition in a disordered doped quantum well strongly coupled to an optical cavity. The magnetic…
Photovoltaic Probe of Cavity Polaritons in a Quantum Cascade Structure
Luca Sapienza, Raffaele Colombelli, Angela Vasanelli +4
The strong coupling between an intersubband excitation in a quantum cascade structure and a photonic mode of a planar microcavity has been detected by angle-resolved photovoltaic m…