Publications

Affichage des publications 631 à 640 sur 673 au total

Science des matériaux

Selective Cold Welding of Colloidal Gold Nanorods

A new cold nanowelding technique for cetyltrimethylammonium bromide (CTAB)-stabilized colloidal nanorods in water is reported. This technique leads to the formation of micrometric nanowires by end-to-end self-organization and welding of nanorods…

Simona Cristina Laza, Nicolas Sanson, Cécile Sicard-Roselli, Anthony Aghedu, Bruno Palpant

Particle & Particle Systems Characterization -

Optique

Stimulated Emission Depletion Microscopy Resolves Individual Nitrogen Vacancy Centers in Diamond Nanocrystals

Nitrogen-vacancy (NV) color centers in nanodiamonds are highly promising for bioimaging and sensing. However, resolving individual NV centers within nanodiamond particles and the controlled addressing and readout of their spin state has remained a…

Silvia Arroyo-Camejo, Marie-Pierre Adam, Mondher Besbes, Jean-Paul Hugonin, Vincent Jacques, Jean-Jacques Greffet, Jean-François Roch, Stefan W Hell, François Treussart

ACS Nano -

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

Submicrometer 3D structures fabrication enabled by one-photon absorption direct laser writing

We demonstrate a new 3D fabrication method to achieve the same results as those obtained by the two-photon excitation technique, by using a simple one-photon elaboration method in a very low absorption regime. Desirable 2D and 3D submicrometric…

Mai Trang Do, Thi Thanh Ngan Nguyen, Qinggele Li, Henri Benisty, Isabelle Ledoux-Rak, Ngoc Diep Lai

Optics Express -

Science des matériaux

Anomalous thermal conductivity by surface phonon-polaritons of polar nano thin films due to their asymmetric surrounding media

nd the Boltzmann transport equation. It is shown that: (1) a small difference between the permittivities of the substrate and superstrate of the film can generate giant propagation lengths and therefore remarkably enhances its thermal conductivity…

Jose Ordonez-Miranda, Laurent Tranchant, Takuro Tokunaga, Beomjoon Kim, Bruno Palpant, Yann Chalopin, Thomas Antoni, Sebastian Volz

Journal of Applied Physics -