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Benoît Marie Joseph Deveaud

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Publications associées (95)

Solid-state physics - Polaritronics in view

Benoît Marie Joseph Deveaud

Polaritons are an odd cross-breed of a particle, half-matter, half-light. They could offer an abundant crop of new and improved optoelectronic devices — a promise already being fulfilled. ...

2008

Growth mode induced carrier localization in InGaN/GaN quantum wells

Jean-François Carlin, Benoît Marie Joseph Deveaud, Jean-Daniel Ganière, Nicolas Grandjean, Raphaël Butté, Eric Feltin

The growth of InGaN quantum wells ( QWs) by metal-organic vapour phase epitaxy is investigated by atomic force microscopy ( AFM). It is shown that for low growth temperatures the surface morphology of the thin InGaN well layer ( 1.5 nm) exhibits a meanderi ...

2007

High spatial resolution picosecond cathodoluminescence of InGaN quantum wells

Jean-François Carlin, Benoît Marie Joseph Deveaud, Jean-Daniel Ganière, Andrea Crottini, Nicolas Grandjean, Eric Feltin

The authors have studied InxGa1-xN/GaN (x approximate to 15%) quantum wells (QWs) using atomic force microscopy (AFM) and picosecond time resolved cathodoluminescence (pTRCL) measurements. They observed a contrast inversion between monochromatic CL maps co ...

American Institute of Physics2006

Microcavity for optical telecommunication device, comprises two bragg reflectors separated by at least one semiconductor layer

Benoît Marie Joseph Deveaud, François Morier-Genoud, Cristiano Ciuti

Microcavity comprising two reflectors, at least one semiconductor layer separating said reflectors and a semiconductor quantum well wherein at least one of said reflectors and of said at least one semiconductor layer comprises a structure which is adjusted ...

2006

Polariton quantum boxes in semiconductor microcavities

Benoît Marie Joseph Deveaud, François Morier-Genoud, Reda Idrissi Kaitouni, Ounsi El Daïf, Jean-Philippe Brantut

American Institute of Physics2006

Engineering the spatial confinement of exciton polaritons in semiconductors

Vincenzo Savona, Benoît Marie Joseph Deveaud, Jean-Daniel Ganière, François Morier-Genoud, Reda Idrissi Kaitouni, Taofiq Paraïso, Ounsi El Daïf, Pierre Lugan

We demonstrate three-dimensional spatial confinement of exciton-polaritons in a semiconductor microcavity. Polaritons are confined within a micron-sized region of slightly larger cavity thickness, called mesa, through lateral trapping of their photon compo ...

2006

An integrated holding-beam-at-transparency (hbat) configuration for semiconductor optical amplification or emission

Benoît Marie Joseph Deveaud, Marc-André Dupertuis, Andrea Crottini

An optical device for amplifying or emitting an optical beam of given wavelength comprises an optical source (20) in combination with a primary optical device (10) which is a semiconductor optical amplifier (SOA), a gain-clamped semiconductor optical ampli ...

2006

Time-Resolved Cathodoluminescence of InGaAs/AlGaAs Tetrahedral Pyramidal Quantum structures

Benoît Marie Joseph Deveaud, Jean-Daniel Ganière, Elyahou Kapon, Andrea Crottini, Samuel Sonderegger, Martin Henrik Baier

Springer-Verlag2006

Bose-Einstein condensation of exciton polaritons

Vincenzo Savona, Benoît Marie Joseph Deveaud, Stefan Kundermann

Phase transitions to quantum condensed phases - such as Bose - Einstein condensation (BEC), superfluidity, and superconductivity - have long fascinated scientists, as they bring pure quantum effects to a macroscopic scale. BEC has, for example, famously be ...

2006

Zero dimensional exciton-polaritons

Vincenzo Savona, Benoît Marie Joseph Deveaud, François Morier-Genoud, Reda Idrissi Kaitouni, Gaël Nardin, Ounsi El Daïf, Jean-Philippe Brantut

We present a novel semiconductor structure in which 0D polaritons coexist with 2D microcavity polaritons. Spatial trapping of the 2D microcavity polaritons results from the confinement of their photonic part in a potential well, consisting of an adjustable ...

2006

Near infrared twin photon source

Benoît Marie Joseph Deveaud, François Morier-Genoud, Ounsi El Daïf

Optical parametric oscillator including a semiconductor microcavity being configured to spatially localize polaritons of at least three quantized polariton energy levels to effect an optical parametric oscillation. ...

2006

Time-Resolved Optical Spectroscopies

Benoît Marie Joseph Deveaud

Spectroscopy basically consists in retrieving information on any system through the use of optical information as a function of wavelength. The examples are countless, and the field is of major importance. For example, the structure of the hydrogen atom ha ...

Elsevier2005

Optical injection of charge current in quantum wires: oscillations induced by excitonic effects

Daniel Marti, Benoît Marie Joseph Deveaud, Marc-André Dupertuis

We investigate the charge current that is optically injected by interference between one- and two-photon excitation in the presence of excitonic effects. We consider a realistic V-shaped quantum wire excited slightly below the band gap by two simultaneous ...

2005

Localization-dependent photoluminescence spectrum of biexcitons in semiconductor quantum wires

Vincenzo Savona, Benoît Marie Joseph Deveaud, Andrea Feltrin, Xiao Wang

We study exciton and biexciton spectra in disordered semiconductor quantum wires by means of nanophotoluminescence spectroscopy. We demonstrate a close link between the exciton localization length along the wire and the occurrence of a biexciton spectral l ...

2005

Probing carrier dynamics in nanostructures by picosecond cathodoluminescence

Benoît Marie Joseph Deveaud, Jean-Daniel Ganière, Elyahou Kapon, Andrea Crottini, Samuel Sonderegger, Martin Henrik Baier

2005

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