Publications

Affichage des publications 551 à 560 sur 726 au total

ou physique

Design of Near-Infrared-Absorbing Unsymmetrical Polymethine Dyes with Large Quadratic Hyperpolarizabilities

Fifteen heptamethine dyes in which a tricyanofuran acceptor is linked to donors of different strength were synthesized, and their absorption, thermal, electrochemical, and second-order nonlinear optical properties were investigated. While the…

Simon Pascal, Yulia Getmanenko, Yadong Zhang, Iryna Davydenko, Minh Hoang Ngo, Guillaume Pilet, Sébastien Redon, Yann Bretonniere, Olivier Maury, Isabelle Ledoux-Rak, Stephen Barlow, Seth R. Marder, Chantal Andraud

Chemistry of Materials -

Instrumentations et Détecteurs

Fully-correlated pumping for dual-frequency VECSELs dedicated to cesium CPT clocks

We report a fully-correlated multi-mode pumping architecture optimized for dramatic noise reduction of a class-A dual-frequency Vertical External Cavity Surface Emitting Laser (VECSEL). Thanks to amplitude division of a laser diode, the two…

Grégory Gredat, Debanuj Chatterjee, Ghaya Baili, François Gutty, Isabelle Sagnes, Fabienne Goldfarb, Fabien Bretenaker, Hui Liu

Opt.express -

Physique Générale

Noise Investigation of a Dual-Frequency VECSEL for Application to Cesium Clocks

We theoretically and experimentally study the noise of a class-A dual-frequency vertical external cavity surface emitting laser operating at Cesium clock wavelength. The intensity noises of the two orthogonally polarized modes and the phase noise of…

Hui Liu, Grégory Gredat, Ghaya Baili, François Gutty, Fabienne Goldfarb, Isabelle Sagnes, Fabien Bretenaker

Journal of Lightwave Technology -

Matériaux

Single-walled carbon nanotube/polystyrene core-shell hybrids: synthesis and photoluminescence properties

The formation of core-shell structures has permitted to improve greatly the emission properties of inorganic quantum dots. Single-Walled Carbon Nanotubes, thanks to their emission in the near infrared region, are promising materials for…

Lucile Orcin-Chaix, Gaelle Trippé-Allard, Christophe Voisin, Hanako Okuno, Vincent Derycke, Jean‐sébastien Lauret, Stéphane Campidelli

Journal of Materials Chemistry C -

photonique

Ultra-low noise dual-frequency VECSEL at telecom wavelength using fully correlated pumping

An ultra-low intensity and beatnote phase noise dual-frequency vertical-external-cavity surface-emitting laser is built at telecom wavelength. The pump laser is realized by polarization combining two single-mode fibered laser diodes in a single-mode…

Hui Liu, Grégory Gredat, Syamsundar De, Ihsan Fsaifes, Aliou Ly, Rémy Vatré, Ghaya Baili, Sophie Bouchoule, Fabienne Goldfarb, Fabien Bretenaker

Optics Letters -

Optique

Fully–correlated multi–mode pumping for low–noise dual–frequency VECSELs

We report a fully-correlated multi-mode pumping architecture optimized for dramatic noise reduction of a class-A dual-frequency Vertical External Cavity Surface Emitting Laser (VECSEL). Thanks to amplitude division of a laser diode, the two…

Grégory Gredat, Debanuj Chatterjee, Ghaya Baili, François Gutty, Isabelle Sagnes, Fabienne Goldfarb, Fabien Bretenaker, Hui Liu

Optics Express -

Optique

Single photon emission from graphene quantum dots at room temperature

Graphene being a zero-gap material, considerable efforts have been made to develop semiconductors whose structure is compatible with its hexagonal lattice. Size reduction is a promising way to achieve this objective. The reduction of both dimensions…

Shen Zhao, Julien Lavie, Loïc Rondin, Lucile Orcin-Chaix, Carole Diederichs, Philippe Roussignol, Yannick Chassagneux, Christophe Voisin, Klaus Müllen, Akimitsu Narita, Stéphane Campidelli, Jean‐sébastien Lauret

Nature Communications -