Now showing items 1-14 of 14

    • Active Control of Surface Plasmon Waveguides with a Phase Change Material 

      Rudé, Miquel; Simpson, Robert E.; Quidant, Romain; Pruneri, Valerio; Renger, Jan (2015-05-25)
      Article
      Open Access
      The ability to manipulate light propagation at the nanoscale is of vital importance for future integrated photonic circuits. In this work we exploit the high contrast in the optical properties of the phase change material ...
    • Cooling and manipulation of a levitated nanoparticle with an optical fiber trap 

      Mestres, Pau; Berthelot, Johann; Spasenović, Marko; Gieseler, Jan; Novotny, Lukas; Quidant, Romain (AIP, 2015-10-15)
      Article
      Open Access
      Accurate delivery of small targets in high vacuum is a pivotal task in many branches of science and technology. Beyond the different strategies developed for atoms, proteins, macroscopic clusters, and pellets, the manipulation ...
    • Coupling of individual quantum emitters to channel plasmons 

      Bermúdez-Ureña, Esteban; Gonzalez-Ballestero, Carlos; Geiselmann, Michael; Marty, Renaud; Radko, Ilya P; Holmgaard, Tobias; Alaverdyan, Yury; Moreno, Esteban; García-Vidal, Francisco J. G; Bozhevolnyi, Sergey I.; Quidant, Romain (Nature Publishing Group, 2015-08-07)
      Article
      Open Access
      Efficient light-matter interaction lies at the heart of many emerging technologies that seek on-chip integration of solid-state photonic systems. Plasmonic waveguides, which guide the radiation in the form of strongly ...
    • Electrically Driven Varifocal Silicon Metalens 

      Afridi, Adeel; Canet-Ferrer, Josep; Philippet, Laurent; Osmond, Johann; Berto, Pascal; Quidant, Romain (ACS, 2018-10-08)
      Article
      Open Access
      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
      Open Access
      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 ...
    • Enantiomer-selective molecular sensing using racemic nanoplasmonic arrays 

      García Guirado, José; Svedendahl, Mikael; Puigdollers i González, Joaquim; Quidant, Romain (2018-09-19)
      Article
      Open Access
      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 ...
    • Enhanced chiral sensing with dielectric nanoresonators 

      García Guirado, José; Svedendahl, Mikael; Puigdollers i González, Joaquim; Quidant, Romain (2019-12-18)
      Article
      Open Access
      Chiro-sensitive molecular detection is highly relevant as many biochemical compounds, the building blocks of life, are chiral. Optical chirality is conventionally detected through circular dichroism (CD) in the UV range, ...
    • Extended organization of colloidal microparticles by surface plasmon polariton excitation 

      Garces-Chavez, V; Quidant, Romain; Reece, P J; Badenes, G; Torner Sabata, Lluís; Dholakia, K (2006-02)
      Article
      Restricted access - publisher's policy
      In this paper we demonstrate the first use of enhanced optical forces and optically induced thermophoretic and convective forces produced by surface plasmon polariton excitation for large-scale ordering and trapping of ...
    • Growth of plasmonic gold nanostructures by electron beam induced deposition 

      Graells, S; Alcubilla González, Ramón; Badenes, G; Quidant, Romain (2007-09)
      Article
      Restricted access - publisher's policy
      The authors report on the growth of organometallic dots for optical applications using electron beam induced gold deposition on a transparent substrate. The effects of the substrate material and the deposition parameters, ...
    • 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
      Open Access
      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 ...
    • 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
      Open Access
      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 ...
    • Pentacene thin-film transistors with polymeric gate dielectric 

      Puigdollers i González, Joaquim; Voz Sánchez, Cristóbal; Orpella García, Alberto; Quidant, Romain; Martín García, Isidro; Vetter, Michael; Alcubilla González, Ramón (2004-06)
      Article
      Restricted access - publisher's policy
      Pentacene thin-film transistors have been obtained using polymethyl methacrylate as a gate dielectric. The maximum process temperature was 170 °C, which corresponds to the baking of the polymeric gate dielectric. These ...
    • 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
      Open Access
      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
      Open Access
      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 ...