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Publications

Affichage des publications 81 à 90 sur 724 au total

Chimie

Quantifying nucleation in flow by video-FLIM

During a precipitation experiment in microfluidics, crystals appear in the flow. Using a molecule that turns fluorescent in the solid phase, these crystals can be counted, measured and their polymorph identified. From this collection of data, the…

Zhengyu Zhang, Jean-Frédéric Audibert, Thomas Rodet, Anne Spasojevic - de Biré, Robert B Pansu

Methods in Microscopy -

Chimie

Spectro-FLIM for heritage: scanning and analysis of the time resolved luminescence spectra of a fossil shrimp

Nous décrivons l'utilisation d'un dispositif d'imagerie par comptage de photons uniques pour scanner la surface d'un spécimen fossile plat. Nous avons étudié une crevette du Trias précoce identifiée comme Anisaeger longirostrus, du biote de Paris …

Louis Patarin, Jérémie Ritoux, Jean-Frédéric Audibert, Loïc Bertrand, Arnaud Brayard, Emmanuel Fara, Robert B Pansu

Methods in Microscopy -

Physique

Nonlinear Optics Through the Field Tensor Formalism

The “field tensor” is the tensor product of the electric fields of the interacting waves during a sum‐ or difference‐frequency generation nonlinear optical interaction. It is therefore a tensor describing light interacting with matter, the latter…

Julien Duboisset, Benoît Boulanger, Sophie Brasselet, P. Segonds, Joseph Zyss

Laser and Photonics Reviews -

Chimie

Interplay of structure and photophysics of individualized rod-shaped graphene quantum dots

Despite its outstanding electronic, optical and mechanical properties, the use of graphene for real-world applications is severely limited because of its semi-metallic character. It is well known that when a material is reduced to nanoscale…

Stéphane Campidelli, Daniel Medina-Lopez, Thomas Liu, Silvio Osella, Loïc Rondin, Nicolas Rolland, David Beljonne, Jean‐sébastien Lauret

ChemOnTubes -

Physique

Carbon Dot Synthesis in CYTOP Optical Fiber Using IR Femtosecond Laser Direct Writing and Its Luminescence Properties

Luminescent carbon dots (CDs) were locally synthesized in the core of CYTOP fibers using IR femtosecond laser direct writing (FLDW), a one-step simple method serving as a post-treatment of the pristine fiber. This approach enables the creation of…

Ruyue Que, Jean-Frédéric Audibert, Enrique Garcia-Caurel, Olivier Plantevin, Kyriacos Kalli, Matthieu Lancry, Bertrand Poumellec, Robert B Pansu

Nanomaterials -

Chimie

3D real-time single particle tracking using two-photon fluorescence from bright dye-based organic nanoparticles

This paper addresses the use of ultrabright dye-based fluorescent organic nanoparticles in a 3D single-particle tracking two-photon microscopy setup. The nanoparticles consist of an assembly of quadrupolar dyes, presenting a large two-photon…

Marie-Charlotte Emperauger, Eleonore Kurek, Florian Semmer, Karen Perronet, Jonathan Daniel, Mireille Blanchard‐desce, François Marquier

Nanoscale -

Physique

Optical properties of fs laser-created sphere inside CYTOP fiber by Mueller polarimetry

Optical elements embedded in an optical fiber can be used to shape and modulate the light transmitted within. We consistently observe, via Mueller polarimetry, that the optical properties of a femtosecond (fs) laser-created spherical cavity within a…

Ruyue Que, Enrique Garcia-Caurel, Kyriacos Kalli, Robert Pansu, Jean-Frédérique Audibert, Matthieu Lancry, Bertrand Poumellec

Optics Letters -

Physique

Direct fabrication of rough gold nanoholes and investigation of their second-harmonic generation

Abstract In this study, we introduce a simple and cost-effective technique called one-photon absorption-based direct laser writing (OPA-based DLW) to directly fabricate noncentrosymmetric gold nanoholes (Au NHs). This technique relies on the…

Quang Truong Pham, Adriana Umbria Fandino, Gia Long Ngo, Clement Lafargue, Isabelle Ledoux-Rak, Ngoc Diep Lai

Physica Scripta -