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Publications

Affichage des publications 691 à 700 sur 724 au total

Optique

Magnetometry with nitrogen-vacancy ensembles in diamond based on infrared absorption in a doubly resonant optical cavity

We propose using an optical cavity to enhance the sensitivity of a magnetometer relying on the detection of the spin state of a high-density nitrogen-vacancy ensemble in diamond using infrared optical absorption. The role of the cavity is to obtain…

Yannick Dumeige, Mayeul Chipaux, Vincent Jacques, François Treussart, Jean-François Roch, Thierry Debuisschert, Victor M. Acosta, Andrey Jarmola, Kasper Jensen, Pauli Kehayias, Dmitry Budker

Physical Review B: Condensed Matter and Materials Physics (1998-2015) -

Optique

Theoretical and experimental analysis of intensity noise correlations in an optically pumped, dual-frequency Nd:YAG laser

The spectral behavior of the intensity noise correlations between the two orthogonally polarized modes of a dual-frequency Nd:YAG laser is investigated, both experimentally and theoretically. We show, for different coupling strengths between the two…

Syamsundar De, Goulc'Hen Loas, Abdelkrim El Amili, Mehdi Alouini, Fabien Bretenaker

Journal of the Optical Society of America B -

Optique

Experimental demonstration of a dual-frequency laser free from anti-phase noise

A reduction of more than 20 dB of the intensity noise at the anti-phase relaxation oscillation frequency is experimentally demonstrated in a two-polarization dual-frequency solid-state laser without any optical or electronic feedback loop. Such a…

Abdelkrim El Amili, Goulc'Hen Loas, Syamsundar De, Sylvain Schwartz, Gilles Feugnet, Jean-Paul Pocholle, Fabien Bretenaker, Mehdi Alouini

Optics Letters -

Optique

Experimental study of the delayed threshold phenomenon in a Class-A VECSEL

An experimental study of the delayed threshold phenomenon in a Vertical Extended Cavity Semiconductor Emitting Laser is carried out. Under modulation of the pump power, the laser intensity exhibits a hysteresis behavior in the vicinity of the…

Abdelkrim El Amili, Grégory Gredat, Mehdi Alouini, Isabelle Sagnes, Fabien Bretenaker

European Physical Journal: Applied Physics -

Physique Générale

Time delay generation at high frequency using SOA based slow and fast light

We show how Up-converted Coherent Population Oscillations (UpCPO) enable to get rid of the intrinsic limitation of the carrier lifetime, leading to the generation of time delays at any high frequencies in a single SOA device. The linear dependence…

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

Optics Express -

Physique Générale

Observation of noise phase locking in a single-frequency VECSEL

We present an experimental observation of phase locking effects in the intensity noise spectrum of a semiconductor laser. These noise correlations are created in the medium by coherent carrier-population oscillations induced by the beatnote between…

A. El Amili, V. Pal, F. Goldfarb, R. Ghosh, M. Alouini, I. Sagnes, F. Bretenaker

Optics Express -