112 citations · 704 across the 34 of their papers we have counts for
16 papers · 1 filter
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…
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…
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…
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…
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…
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…
Gate controlled coupling of intersubband plasmons
Aymeric Delteil, Angela Vasanelli, Yanko Todorov +4
The optical response of a heavily doped quantum well, with two occupied subbands, has been investigated as a function of the electronic density. It is shown that the two optically…
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…
Polaritonic spectroscopy of intersubband transitions
Yanko Todorov, Lorenzo Tosetto, Aymeric Delteil +4
We report on an extensive experimental study of intersubband excitations in the THz range arising from the coupling between a quantum well and a zero-dimensional metal-metal microc…
Optical phonon scattering of cavity polaritons in an electroluminescent device
A. Delteil, A. Vasanelli, P. Jouy +5
A signature of the scattering between microcavity polaritons and longitudinal optical phonons has been observed in the electroluminescence spectrum of an intersubband device operat…
Transition from strong to ultra-strong coupling regime in mid-infrared metal-dielectric-metal cavities
Pierre Jouy, Angela Vasanelli, Yanko Todorov +4
We have investigated the transition from strong to ultra-strong coupling regime between a mid-infrared intersubband excitation and the fundamental mode of a metal-dielectric-metal…
Charge induced coherence between intersubband plasmons in a quantum structure
Aymeric Delteil, Angela Vasanelli, Yanko Todorov +5
In this work we investigate a low dimensional semiconductor system, in which the light-matter interaction is enhanced by the cooperative behavior of a large number of dipolar oscil…
Direct surface cyclotron resonance terahertz emission from a quantum cascade structure
François-Régis Jasnot, Louis-Anne De Vaulchier, Yves Guldner +6
A strong magnetic field applied along the growth direction of a semiconductor quantum well gives rise to a spectrum of discrete energy states, the Landau levels. By combining quant…
Radiative quantum efficiency in an InAs/AlSb intersubband transition
C. Faugeras, A. Wade, A. Leuliet +8
The quantum efficiency of an electroluminescent intersubband emitter based on InAs/AlSb has been measured as a function of the magnetic field up to 20T. Two series of oscillations…