112 citations · 704 across the 34 of their papers we have counts for
35 papers
Spontaneous emission of light by non-equilibrium phonons
J. Plo, P. Valvin, M. Moret +8
When a system is brought out of equilibrium by an external excitation, its relaxation to thermodynamic equilibrium generates phonons. These non-equilibrium phonons degrade via casc…
Purcell enhanced electroluminescence of a unipolar light emitting quantum device at 10 micron
Marta Mastrangelo, Djamal Gacemi, Axel Evirgen +7
Efficient generation of radiation in the mid- and far- infrared relies primarily on lasers and coherent nonlinear optical phenomena driven by lasers. This wavelength range lacks of…
Midinfrared Semiconductor Photonics - A Roadmap
J. R. Meyer, I. Vurgaftman, S. -Q. Yu +56
Semiconductor photonic devices operating in the midwave infrared (mid-IR, which we roughly define here as wavelengths spanning 3 to 14 microns) uniquely address a wide range of cur…
Accurate prediction of optical transitions in epitaxial InGaAs/InAlAs asymmetric coupled quantum well structures
Konstantinos Pantzas, Virginie Trinité, Angel Vasanelli +5
Atomically-resolved Z-contrast and strain mappings are used to extract a model of the composition of an InGaAs/InAlAs asymmetric coupled quantum-well structure grown on InP using m…
Heterodyne coherent detection of phase modulation in a mid-infrared unipolar device
Hamza Dely, Baptiste Chomet, Thomas Bonazzi +8
Phase modulation is demonstrated in a quantum Stark effect modulator designed to operate in the mid-infrared at wavelength around 10 m. Both phase and amplitude modulation are s…
Heterodyne coherent detection of the electric field temporal trace emitted by frequency-modulated comb lasers
Baptiste Chomet, Salim Basceken, Djamal Gacemi +6
Frequency-modulated (FM) combs are produced by mode-locked lasers in which the electric field has a linearly chirped frequency and nearly constant amplitude. This regime of operati…
Ultra-sensitive heterodyne detection at room temperature in the atmospheric windows
Mohammadreza Saemian, Livia Del Balzo, Djamal Gacemi +9
We report room temperature heterodyne detection of a quantum cascade laser beaten with a local oscillator on a unipolar quantum photodetector in two different atmospheric windows,…
Highly coherent phase-lock of an 8.1 m quantum cascade laser to a turn-key mid-IR frequency comb
B. Chomet, D. Gacemi, O. Lopez +5
A continuous-wave Fabry-Perot quantum cascade laser (QCL) emitting at 8.1 m operating in the single mode regime has been coherently phase locked to a turn-key low-noise commerci…
Phonon-mediated dark to bright plasmon conversion
Benjamin Rousseaux, Yanko Todorov, Angela Vasanelli +1
The optical response of a matter excitation embedded in nanophotonic devices is commonly described by the Drude-Lorentz model. Here, we demonstrate that this widely used approach f…
10 Gbit/s free space data transmission at 9 m wavelength with unipolar quantum optoelectronics
Hamza Dely, Thomas Bonazzi, Olivier Spitz +12
The realization of high-frequency unipolar quantum optoelectronic devices enables the demonstration of high bitrate free space data transmission in the second atmospheric window. D…
High temperature metamaterial terahertz quantum detector
Mathieu Jeannin, Thomas Bonazzi, Djamal Gacemi +7
We demonstrate a high temperature performance quantum detector of Terahertz (THz) radiation based on three-dimensional metamaterial. The metamaterial unit cell consists of an induc…
Semiconductor quantum plasmons for high frequency thermal emission
Angela Vasanelli, Yanko Todorov, Baptiste Dailly +5
Plasmons in heavily doped semiconductor layers are optically active excitations with sharp resonances in the 5-15 um wavelength region set by the doping level and the effective mas…
Long-wavelength infrared photovoltaic heterodyne receivers using patch-antenna quantum cascade detectors
Azzurra Bigioli, Giovanni Armaroli, Angela Vasanelli +7
Quantum cascade detectors (QCD) are unipolar infrared devices where the transport of the photo excited carriers takes place through confined electronic states, without an applied b…
Semiconductor quantum plasmonics
Angela Vasanelli, Simon Huppert, Andrew Haky +3
We investigate the frontier between classical and quantum plasmonics in highly doped semiconductor layers. The choice of a semiconductor platform instead of metals for our study pe…
Quasi-static and propagating modes in three-dimensional THz circuits
Mathieu Jeannin, Djamal Gacemi, Angela Vasanelli +6
We provide an analysis of the electromagnetic modes of three-dimensional metamaterial resonators in the THz frequency range. The fundamental resonance of the structures is fully de…
Quantum Theory of Multisubband Plasmon-Phonon Coupling
Sofia Ribeiro, Angela Vasanelli, Yanko Todorov +1
We present a theoretical description of the coupling between longitudinal optical phonons and collective excitations of a two-dimensional electron gas. By diagonalizing the Hamilto…
Mixing properties of room temperature patch-antenna receivers in a mid-infrared (9um) heterodyne system
A. Bigioli, D. Gacemi, D. Palaferri +10
A room-temperature mid-infrared (9 um) heterodyne system based on high-performance unipolar optoelectronic devices is presented. The local oscillator (LO) is a quantum cascade lase…
Ultra-Strong Light-Matter Coupling in Deeply Subwavelength THz LC resonators
Mathieu Jeannin, Giacomo Mariotti Nesurini, Stéphan Suffit +7
The ultra-strong light-matter coupling regime has been demonstrated in a novel three-dimensional inductor-capacitor (LC) circuit resonator, embedding a semiconductor two-dimensiona…
Near- and mid-infrared intersubband absorption in top-down GaN/AlN nano- and micropillars
Jonas Lähnemann, David A. Browne, Akhil Ajay +5
We present a systematic study of top-down processed GaN/AlN heterostructures for intersubband optoelectronic applications. Samples containing quantum well superlattices that displa…
Room temperature 9 m photodetectors and GHz heterodyne receivers
Daniele Palaferri, Yanko Todorov, Azzurra Bigioli +11
Room temperature operation is mandatory for any optoelectronics technology which aims to provide low-cost compact systems for widespread applications. In recent years, an important…
Strong and ultra-strong coupling with free space radiation
Simon Huppert, Angela Vasanelli, Giulia Pegolotti +2
Strong and ultra-strong light-matter coupling are remarkable phenomena of quantum electrodynamics occurring when the interaction between a matter excitation and the electromagnetic…
Output squeezed radiation from dispersive ultrastrong light-matter coupling
S. Fedortchenko, S. Huppert, A. Vasanelli +6
We investigate the output generation of squeezed radiation of a cavity photon mode coupled to another off-resonant bosonic excitation. By modulating in time their linear interactio…
Radiatively broadened thermal emitters
Simon Huppert, Angela Vasanelli, Thibault Laurent +5
We study the incandescence of a semiconductor system characterized by a radiatively broadened material excitation. We show that the shape of the emission spectrum and the peak emis…
Quantum model of coupled intersubband plasmons
Giulia Pegolotti, Angela Vasanelli, Yanko Todorov +1
We present a quantum model to calculate the dipole-dipole coupling between electronic excitations in the conduction band of semiconductor quantum wells. We demonstrate that the cou…