Blog

  • Identification of Active Sites in Oxidation Reaction from Real-Time Probing of Adsorbate Motion over Pd Nanoparticles

    Ahmed Ghalgaoui 1 Ridha Horchani 2 Jijin Wang 1 Aimeric Ouvrard 1 Serge Carrez Bernard Bourguignon 1
    1 ISMO – Institut des Sciences Moléculaires d’Orsay
    2 LAC – Laboratoire Aimé Cotton

  • Proposal for the formation of ultracold deeply bound RbSr dipolar molecules by all-optical methods

    Adrien Devolder 1 Eliane Luc-Koenig 1 Osman Atabek 2 Michèle Desouter-Lecomte 3 Olivier Dulieu 1
    1 LAC – Laboratoire Aimé Cotton
    2 ISMO – Institut des Sciences Moléculaires d’Orsay
    3 LCP – Laboratoire de Chimie-Physique

  • 25 gauge fibered-needle for label-free fluorescence analysis of breast masses: a first in vivo study

    Marie-Christine Mathieu 1 Suzette Delaloge 2 Corinne Balleyguier 3 Charlotte Benoit 4 Christophe Tourasse 5 Martine Boisserie-Lacroix 6 Alexis Toullec 7 Marie-Pierre Fontaine-Aupart 8 René Farcy 9
    1 IGR – Institut Gustave Roussy
    2 Pathologie mammaire
    Département de médecine oncologique [Gustave Roussy]
    3 Service de Radiologie Adultes
    4 Nodea Medical
    5 Hôpital privé Jean Mermoz
    6 Centre Régional de Lutte Contre le Cancer Bergognié
    7 Nodea Medical
    8 ISMO – Institut des Sciences Moléculaires d’Orsay
    9 LAC – Laboratoire Aimé Cotton

  • Preclinical ex vivo evaluation of the diagnostic performance of a new device for in situ label-free fluorescence spectral analysis of breast masses

    Marie-Christine Mathieu 1 Alexis Toullec 2 Charlotte Benoit 3 Richard Berry Pierre Validire 4 Pauline Beaumel Yves Vincent Pierre Maroun 5 Philippe Vielh 6 Lama Alchab René Farcy 7 Helene Moniz-Koum 2 Marie-Pierre Fontaine-Aupart 8 Suzette Delaloge 9 Corinne Balleyguier 10, 11
    1 Pathologie morphologique
    Département de biologie et pathologie médicales [Gustave Roussy]
    2 Nodea Medical
    3 Nodea Medical
    4 Dpt pathologie
    5 Département de radiothérapie [Gustave Roussy]
    6 Laboratoire de recherche translationnelle
    Direction de la recherche [Gustave Roussy]
    7 LAC – Laboratoire Aimé Cotton
    8 ISMO – Institut des Sciences Moléculaires d’Orsay
    9 Département de médecine oncologique [Gustave Roussy]
    10 BFSNC – IFR54 – Bases fondamentales et stratégies nouvelles en cancérologie
    11 Imagerie diagnostique (radiologie / échographie)
    Département d’imagerie médicale [Gustave Roussy]

  • Visual resolution and cone spacing in the nasal and inferior retina

    Kelly Woog 1 Richard Legras 2
    1 LAC – Laboratoire Aimé Cotton
    2 LuMIn – Laboratoire Lumière, Matière et Interfaces

  • Distribution of cone density, spacing and arrangement in adult healthy retinas with adaptive optics flood illumination

    Richard Legras 1 Alain Gaudric 2 Kelly Woog 3
    1 LuMIn – Laboratoire Lumière, Matière et Interfaces
    2 Hôpital Lariboisière-Fernand-Widal [APHP]
    3 LAC – Laboratoire Aimé Cotton

  • Bandgap Engineering of Graphene Nanoribbons by Control over Structural Distortion

    Yunbin Hu Peng Xie 1 Marzio de Corato Alice Ruini Shen Zhao 2 Felix Meggendorfer Lasse Arnt Straasø Loïc Rondin 3, 4 Patrick Simon 5 Juan Li 6 Jonathan Finley 7 Michael Ryan Hansen Jean‐sébastien Lauret 2, 4 Elisa Molinari Xinliang Feng 8 Johannes Barth Carlos-Andres Palma Deborah Prezzi Klaus Müllen 8 Akimitsu Narita 8
    1 Chongqing Medical University
    2 LAC – Laboratoire Aimé Cotton
    3 LPQM – Laboratoire de Photonique Quantique et Moléculaire
    4 NOOS – Nano Optique et Spectroscopy
    LuMIn – Laboratoire Lumière, Matière et Interfaces
    5 Musée d’Anthropologie Préhistorique
    6 Physik Department [Garching]
    7 TUM – Technische Universität Munchen – Université Technique de Munich [Munich, Allemagne]
    8 MPI-P – Max-Planck-Institut für Polymerforschung

  • Optical Magnetometry of Single Biocompatible Micromagnets for Quantitative Magnetogenetic and Magnetomechanical Assays

    Loïc Toraille 1 Koceila Aizel 2 Elie Balloul 3 Chiara Vicario 3 Cornelia Monzel 3 Mathieu Coppey 3 Emilie Secret 4 Jean-Michel Siaugue 5 Joao Sampaio 6 Stanislas Rohart 6 Nicolas Vernier 7 Louise Bonnemay 8 Thierry Debuisschert 9 Loïc Rondin 1, 10 Jean-François Roch 1 Maxime Dahan 11
    1 LuMIn – Laboratoire Lumière, Matière et Interfaces
    2 CEA-LETI – Commissariat à l’énergie atomique et aux énergies alternatives – Laboratoire d’Electronique et de Technologie de l’Information
    3 PCC – Laboratoire Physico-Chimie Curie [Institut Curie]
    4 PHENIX – PHysicochimie des Electrolytes et Nanosystèmes InterfaciauX
    5 PHENIX – PHysicochimie des Electrolytes et Nanosystèmes InterfaciauX
    6 LPS – Laboratoire de Physique des Solides
    7 IEF – Institut d’électronique fondamentale
    8 PCC – Physico-Chimie-Curie
    9 Thales Research and Technology [Palaiseau]
    10 NOOS – Nano Optique et Spectroscopy
    LuMIn – Laboratoire Lumière, Matière et Interfaces
    11 LKB (Lhomond) – Laboratoire Kastler Brossel

  • Nonlinear conductance in weakly disordered mesoscopic wires: Interaction and magnetic field asymmetry

    Abstract : We study the non-linear conductance G∼∂2I/∂V2|V=0G∼∂2I/∂V2|V=0 in coherent quasi-1D weakly disordered metallic wires. The analysis is based on the calculation of two fundamental correlators (correlations of conductance’s functional derivatives and correlations of injectivities), which are obtained explicitly by using diagrammatic techniques. In a coherent wire of length LL, we obtain G∼0.006E−1ThG∼0.006ETh−1 (and ⟨G⟩=0⟨G⟩=0), where ETh=D/L2ETh=D/L2 is the Thouless energy and DD the diffusion constant; the small dimensionless factor results from screening, i.e. cannot be obtained within a simple theory for non-interacting electrons. Electronic interactions are also responsible for an asymmetry under magnetic field reversal: the antisymmetric part of the non-linear conductance (at high magnetic field) being much smaller than the symmetric one, Ga∼0.001(gETh)−1Ga∼0.001(gETh)−1, where g≫1g≫1 is the dimensionless (linear) conductance of the wire. Weakly coherent regimes are also studied: for Lφ≪LLφ≪L, where LφLφ is the phase coherence length, we get G∼(Lφ/L)7/2E−1ThG∼(Lφ/L)7/2ETh−1, and Ga∼(Lφ/L)11/2(gETh)−1≪GGa∼(Lφ/L)11/2(gETh)−1≪G (at high magnetic field). When thermal fluctuations are important, LT≪Lφ≪LLT≪Lφ≪L where LT=D/T−−−−√LT=D/T, we obtain G∼(LT/L)(Lφ/L)7/2E−1ThG∼(LT/L)(Lφ/L)7/2ETh−1 (the result is dominated by the effect of screening) and Ga∼(LT/L)2(Lφ/L)7/2(gETh)−1Ga∼(LT/L)2(Lφ/L)7/2(gETh)−1. All the precise dimensionless prefactors are obtained. Crossovers towards the zero magnetic field regime are also analysed.

    Christophe Texier 1, 2 Johannes Mitscherling 1, 3
    1 LPTMS – Laboratoire de Physique Théorique et Modèles Statistiques
    2 LPS – Laboratoire de Physique des Solides
    3 Max Planck Institute for Solid State Research

  • W(CO)6 in cryogenic solids: A comparative study of vibrational properties

    Abstract : A comparative study of the vibrational properties of W(CO)6 has been performed in different solids at cryogenic temperatures focusing on the IR absorption and the vibrational dynamics of the CO stretching mode of the organometallic compound. Guest-host interactions areinvestigated in doped solids through the linear IR spectroscopy and four-wave mixing techniques at different temperatures. We show how the host nature, the trapping site, the crystallographic ordering affect the properties of the guest molecule and in particular its vibrational dynamics.

    Raphaël Thon 1 Wutharath Chin 1 Didier Chamma 1 Alejandro Gutiérrez Quintanilla 1 Michele Chevalier 1 Jean-Pierre Galaup 2 Claudine Crépin 3, 1
    1 ISMO – Institut des Sciences Moléculaires d’Orsay
    2 LAC – Laboratoire Aimé Cotton
    3 SYSIPHE
    ISMO – Institut des Sciences Moléculaires d’Orsay