Publications

Affichage des publications 681 à 690 sur 696 au total

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

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

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

Optique

Optical generation and detection of heat exchanges in metal–dielectric nanocomposites

Bruno Palpant

Sebastian Volz - 2009

Optique

Theoretical Study of the Spurious-Free Dynamic Range of a Tunable Delay Line based on Slow Light in SOA

We developed a predictive model describing harmonic generation and intermodulation distortions in semiconductor optical amplifiers (SOAs). This model takes into account the variations of the saturation parameters along the propagation axis inside…

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

Optics Express - 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

Chimie