Publications

Optique

Measurement of the coupling constant in a two-frequency VECSEL.

We measure the coupling constant between the two perpendicularly polarized eigenstates of a two-frequency Vertical External Cavity Surface Emitting Laser (VECSEL). This measurement is performed for different values of the transverse spatial…

V. Pal, P. Trofimoff, B.-X. Miranda, Ghaya Baili, Mehdi Alouini, Loïc Morvan, Daniel Dolfi, Fabienne Goldfarb, Isabelle Sagnes, R. Ghosh, Fabien Bretenaker

Optics Express - 2010

Optique

Optical determination and magnetic manipulation of single nitrogen-vacancy color center in diamond nanocrystal

The controlled and coherent manipulation of individual quantum systems is a fundamental key for the development of quantum information processing. The nitrogen-vacancy (NV) color center in diamond is a promising system since its photoluminescence is…

Ngoc Diep Lai, Dingwei Zheng, François Treussart, Jean-François Roch

Optique

Dynamic saturation in semiconductor optical amplifiers: accurate model, role of carrier density, and slow light

We developed an improved model in order to predict the RF behavior and the slow light properties of the SOA valid for any experimental conditions. It takes into account the dynamic saturation of the SOA, which can be fully characterized by a simple…

Perrine Berger, Mehdi Alouini, Jérôme Bourderionnet, Fabien Bretenaker, Daniel Dolfi

Optics Express - 2010

Optique

Grafting fluorescent nanodiamonds onto optical tips

We recently introduced an all-optical method for grafting onto the apex of an optical tip a single 20 nm nanodiamond with single color-center occupancy and used the resulting single-photon tip in scanning near-field imaging at room temperature,…

Aurelien Drezet, Serge Huant, Aurelien Cuche, Jean-François Roch, François Treussart

Journal of Nanophotonics - 2010

Physique Quantique

Observation of Slow Light in the Noise Spectrum of a Vertical External Cavity Surface-Emitting Laser

The role of coherent population oscillations is evidenced in the noise spectrum of an ultralow noise laser. This effect is isolated in the intensity noise spectrum of an optimized single-frequency vertical external cavity surface-emitting laser. The…

Abdelkrim El Amili, B.-X. Miranda, Fabienne Goldfarb, Ghaya Baili, Gilles Beaudoin, Isabelle Sagnes, Fabien Bretenaker, Mehdi Alouini

Physical Review Letters - 2010

Biophysique

Intermodulation distortion in microwave phase shifters based on slow and fast light propagation in semiconductor optical amplifiers.

We show theoretically and validate experimentally the effect of filtering on the nonlinear behavior of slow and fast light links based on coherent population oscillations in semiconductor optical amplifiers. The existence of a dip in the power…

Perrine Berger, Jérôme Bourderionnet, Fabien Bretenaker, Daniel Dolfi, Seán O. Dúill, Gadi Eisenstein, Mehdi Alouini

Optics Letters - 2010

Chimie

Fluorescence photoswitching : mutual influence between photochromism and fluorescence in bulk and nanomaterials

Rémi Métivier, Jonathan Piard, Sophie Badré, Pei Yu, Robert Bernard Pansu, Keitaro Nakatani

XXIV International Conference on Photochemistry - 2009

Science des matériaux

Influence of a static magnetic field on the photoluminescence of an ensemble of Nitrogen-Vacancy color centers in a diamond single-crystal

We investigate the electron spin resonance of an ensemble of Nitrogen-Vacancy (NV) color centers in a bulk diamond crystal. The four possible orientations of the NV-center in the lattice lead to different dependences on the magnitude and the…

Ngoc Diep Lai, Dingwei Zheng, Fedor Jelezko, François Treussart, Jean-François Roch

Optique

Direct observation of the class-B to class-A transition in the dynamical behavior of a semiconductor laser

The transition between the class-B and class-A dynamical behaviors of a semiconductor laser is directly observed by continuously controlling the lifetime of the photons in a cavity of sub-millimetric to centimetric length. It is experimentally and…

Ghaya Baili, Mehdi Alouini, Thierry Malherbe, Daniel Dolfi, Isabelle Sagnes, Fabien Bretenaker

EPL - Europhysics Letters - 2009

Optique

Slow light using semiconductor optical amplifiers: Model and noise characteristics

We developed an improved model in order to predict the RF behavior of the SOA valid for any experimental conditions. It takes into account the dynamic saturation of the SOA, which can be fully characterized by a simple measurement, and only relies…

Perrine Berger, Mehdi Alouini, Jérôme Bourderionnet, Fabien Bretenaker, Daniel Dolfi

Comptes Rendus. Physique - 2009