Enviaments recents

  • Levitated Nanoparticles for Microscopic Thermodynamics—A Review 

    Gieseler, Jan; Millen, James (MDPI, 2018-04-28)
    Article
    Accés obert
    Levitated Nanoparticles have received much attention for their potential to perform quantum mechanical experiments even at room temperature. However, even in the regime where the particle dynamics are purely classical, ...
  • Tunable and free-form planar optics 

    Berto, Pascal; Philippet, Laurent; Ossmond, Johann; Liu, Chang François; Afridi, Adeel; Montagut Marques, Marc; Molero Agudo, Bernat; Tessier, Gilles; Quidant, Romain (Nature, 2019-07-22)
    Article
    Accés obert
    The advent of spatial control over the phase and amplitude of light waves has profoundly transformed photonics, enabling major advances in fields from imaging and information technology to biomedical optics. Here we propose ...
  • Unravelling the Role of Electric and Magnetic Dipoles in Biosensing with Si Nanoresonators 

    Yavas, Ozlem; Svedendahl, Mikael; Quidant, Romain (ACS, 2019-03-28)
    Article
    Accés obert
    High refractive index dielectric nanoresonators are attracting much attention due to their ability to control both electric and magnetic components of light. Combining confined modes with reduced absorption losses, they ...
  • Electrically Driven Varifocal Silicon Metalens 

    Afridi, Adeel; Canet-Ferrer, Josep; Philippet, Laurent; Osmond, Johann; Berto, Pascal; Quidant, Romain (ACS, 2018-10-08)
    Article
    Accés obert
    Optical metasurfaces have shown to be a powerful approach to planar optical elements, enabling an unprecedented control over light phase and amplitude. At that stage, where a wide variety of static functionalities have ...
  • Enantiomer-selective molecular sensing using racemic nanoplasmonic arrays 

    García-Guirado, Jose; Svedendahl, Mikael; Puigdollers, Joaquim; Quidant, Romain (ACS, 2018-09-14)
    Article
    Accés obert
    Building blocks of life show well-defined chiral symmetry which has a direct influence on their properties and role in Nature. Chiral molecules are typically characterized by optical techniques such as circular dichroism ...
  • Ultrafast nonlinear optical response of Dirac fermions in graphene 

    Baudisch, Matthias; Marini, Andrea; Cox, Joel D.; Zhu, Tony; Silva, Francisco; Teichmann, Stephan; Massicotte, Mathieu; Koppens, Frank H. L.; Levitov, Leonid S.; García de Abajo, Francisco Javier; Biegert, Jens (Nature, 2018-03-09)
    Article
    Accés obert
    The speed of solid-state electronic devices, determined by the temporal dynamics of charge carriers, could potentially reach unprecedented petahertz frequencies through direct manipulation by optical fields, consisting ...
  • Two-Color Dark-Field (TCDF) microscopy for metal nanoparticles imaging inside cells 

    Rodriguez-Fajardo, Valeria; Sanz, Vanesa; Miguel, Ignacio de; Berthelot, Johann; Aćimović, Srdjan; Porcar-Guezenec , Rafael; Quidant , Romain (Royal Society of Chemistry, 2018-01-17)
    Article
    Accés obert
    Noble metal nanoparticles (NPs) supporting localized surface plasmon resonances are widely used in the context of biotechnology as optical and absorption contrast agents with great potential applicability to both diagnostics ...
  • Optimum morphology of gold nanorods for light-induced hyperthermia 

    Morales- Dalmau, J.; Vilches, C.; Miguel, I. De; Sanz, V.; Quidant, R. (Royal Society of Chemistry, 2017-12-26)
    Article
    Accés obert
    Owing to their unique chemical and physical properties, colloidal gold nanoparticles have prompted a wide variety of biocompatible nano-agents for cancer imaging, diagnosis and treatment. In this context, biofunctionalized ...
  • Optically levitated nanoparticle as a model system for stochastic bistable dynamics 

    Ricci, F.; Rica, R. A.; Spasenovic, M.; Gieseler, J.; Rondin, L.; Novotny, L.; Quidant, Romain (Nature, 2017-05-09)
    Article
    Accés obert
    Nano-mechanical resonators have gained an increasing importance in nanotechnology owing to their contributions to both fundamental and applied science. Yet, their small dimensions and mass raises some challenges as their ...
  • Template assisted surface micro microstructuring of flowable dental composites and its effect on the microbial adhesion properties 

    Frenzel, Nadja; Maenz, Stefan; Sanz Beltrán, Vanesa; Völpel, Andrea; Sigusch, Bernd W.; Lüdecke, Claudia; Jandt, Klaus D. (Academy of Dental Materials, 2016-03-01)
    Article
    Accés obert
    Despite their various advantages, such as good esthetic properties, absence of mercury and adhesive bonding to teeth, modern dental composites still have some drawbacks, e.g., a relatively high rate of secondary caries on ...
  • In vivo testing of gold nanoparticles using the Caenorhabditis elegans model organism 

    Gonzalez-Moragasa, Laura; Berto, Clara; Vilches, Clara; Quidant, Romain; Kolovouc, Androniki; Santarella-Mellwig, Rachel; Schwab, Yannick; Stürzenbaum, Stephen; Roig, Anna; Laromainea, Anna (Elsevier, 2017-02-01)
    Article
    Accés obert
    Gold nanoparticles (AuNPs) are present in many man-made products and cosmetics, and are also used by the food and medical industries. Tight regulations regarding the use of mammalian animals for product testing can hamper ...

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