Publications

Affichage des publications 291 à 300 sur 687 au total

Optique

Thermometry of an optically levitated nanodiamond

Using the spin properties of nitrogen-vacancy (NV) centers in levitated diamonds, we characterize the absorption of single nanodiamonds. We first calibrate the thermometry response of the NV centers embedded in our nanodiamonds. Then, using this…

François Rivière, Timothée de Guillebon, Léo Maumet, Gabriel Hétet, Martin Schmidt, Jean-Sébastien Lauret, Loïc Rondin

AVS Quantum Science -

photonique

Impact of Photonic Bandgap Hollow-Core Fiber Loss Wavelength Dependence on the Performance of RFOG

A resonant fiber ring cavity based on a photonicbandgap hollow-core fiber is described and characterized. We explore the fine spectral dependence of the transmission losses of this cavity and their impact on the performances of the resulting…

Maxime Descampeaux, Benoit Debord, Foued Amrani, Gilles Feugnet, Fetah Benabid, Fabien Bretenaker, Frédéric Gérôme

IEEE Inertial Sensors & Systems -

Physique Quantique

Vibronic fingerprints in the luminescence of graphene quantum dots at cryogenic temperature

Atomically precise graphene quantum dots synthesized by bottom-up chemistry are promising versatile single emitters with potential applications forquantum photonic technologies. Towards a better understanding and control of GQDs' optical properties,…

Thomas Liu, Baptiste Carles, Christine Elias, Claire Tonnelé, Daniel Medina-Lopez, Akimitsu Narita, Yannick Chassagneux, Christophe Voisin, David Beljonne, Stéphane Campidelli, Loïc Rondin, Jean‐sébastien Lauret

The Journal of Chemical Physics -

Matériaux

Coating gold nanorods with silica prevents the generation of reactive oxygen species under laser light irradiation for safe biomedical applications

Gold nanoparticles can produce reactive oxygen species (ROS) under the action of ultrashort pulsed light. While beneficial for photodynamic therapy, this phenomenon is prohibitive for other biomedical applications such as imaging, photo-thermal drug…

Sarra Mitiche, Syrine Gueffrache, Sylvie Marguet, Jean-Frédéric Audibert, Robert Bernard Pansu, Bruno Palpant

Journal of materials chemistry‎ B -

ou physique

Burning TADF solids reveals their excitons’ mobility

Nowadays, Thermally Activated Delayed Fluorescence (TADF) compounds have proven to be attractive for highly efficient optoelectronic devices as they can exploit both singlet and triplet excited states generated by charge recombinations that occur in…

Zhengyu Zhang, Arnaud Brosseau, Margaux Elie, Jean-Luc Renaud, Matthieu Hamel, Sylvain Gaillard, Robert Bernard Pansu

Journal of Photochemistry and Photobiology A: Chemistry -

Mécanique statistique

Hot Brownian motion of optically levitated nanodiamonds

The Brownian motion of a particle hotter than its environment is an iconic out-of-equilibrium system. Its study provides valuable insights into nanoscale thermal effects. Notably, it supplies an excellent diagnosis of thermal effects in optically…

François Rivière, Timothée de Guillebon, Damien Raynal, Martin Schmidt, Jean-Sébastien Lauret, Jean-François Roch, Loïc Rondin

ACS photonics -

Science des matériaux

Electron Dynamics in Hybrid Perovskites Reveal the Role of Organic Cations on the Screening of Local Charges

The large tolerance of hybrid perovksites to the trapping of electrons by defects is a key asset in photovoltaic applications. Here, the ionic surface terminations of CH3NH3PbI3 are employed as a testbed to study the effect of electrostatic fields…

Marie Cherasse, Jingwei Dong, Gaëlle Trippé-Allard, Emmanuelle Deleporte, Damien Garrot, Sebastian Maehrlein, Martin Wolf, Zhesheng Chen, Evangelos Papalazarou, Marino Marsi, Jean-Pascal Rueff, Amina Taleb-Ibrahimi, Luca Perfetti

Nano Letters -

Neurobiologie

Impact of $\alpha$-synuclein fibrillar strains and β-amyloid assemblies on mouse cortical neurons endo-lysosomal logistics

Endosomal transport and positioning cooperate in the establishment of neuronal compartment architecture, dynamics, and function, contributing to neuronal intracellular logistics. Furthermore, dysfunction of endo-lysosomal has been identified as a…

Qiao-Ling Chou, Ania Alik, François Marquier, Ronald Melki, François Treussart, Michel Simonneau

eNeuro -