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Surface Spectroscopies & Surface Plasmon Photonics Group

Spanish National Research Council (CSIC)
Instituto de Estructura de la Materia (IEM)

Adress: Serrano 121-123, CP 28006, Madrid
Phone: (+34) 91 5616800
Fax: (+34) 91 5645557

 

The main research lines of our group pertain to the Optical Spectroscopies on Plasmon Metal Nanostructures. Our aim is to contribute to the advance of knowledge through fundamental multidisciplinary research in the field of surface-enhanced optical spectroscopies (SERS, SEF, SEIR) on metal nanostructures supporting plasmon resonances, and, through theorical models, to the understanding of the electromagnetic processes involved. In particular, the following specific objectives will be pursued:

Experimental Objetives:

  • Surface-enhanced Optical spectroscopy on new metal nanostructures (nanoshells, dimer/trimer nanoantennas, nanostars, modified electrodes, etc.) that improve spectroscopy sensitivity and/or substrate fabrication.
  • Modification of the chemical properties of nanoparticle interfaces by functionalization, in order to fabricate nanosensors. Applications of this nanosensor devices to the analysis of polluted waters and drugs.
  • Spectroscopic characterization of molecules of interest in Cultural Heritage: ancient and new artificial building materials, pigments and binding systems,
  • Implement Drug/Biomolecule spectroscopic recognition schemes and applications to antitumoral drugs and radical scavengers with special effect in human aging processes.

(Contacts Jose Vicente García Ramos, Santiago Sánchez Cortés, Sagrario Martínez Ramírez, Paz Sevilla Sierra

 

Theoretical Objetives:

  • Investigate theoretically the electrodynamic response of a variety of metal and semiconductor nanostructures (nanowires, nanoshells, nanoantennas, nanostars, etc.) with emphasis on the impact of plasmon and/or magnetic resonances on a variety of phenomena: NW photoluminescence & absorption, SERS & SEF, Fano resonances, NIMs, etc. Explore new metal & dielectric nanostructure configurations of interest in plasmonics, nano-optics, and metamaterials. (Contact: Jose A. Sánchez Gil).
Fano/Lorentz resonant modes of a Au rod Electrical Near Field map of a dielectric 200 nm silver rod

 

Funcionalization with dithiols of silver nanoparticles for the detection of organochorine pesticides (aldrin, dieldrin, endosulfan).
SUMMER SCHOOL ON BIOSPECTROSCOPY

JACA (SPAIN)
24-27 June (2014)
Gold Nanostars for attacking Cancer
Adsorption of Beta-Adrenergic Agonists used in Sport Doping on Metal Nanoparticles: a Detection Study Based on the Twofold enhancement of Surface-Enhanced Raman Scattering
Trace-detection of triphenylene by surface enhanced Raman spectroscopy using functionalized silver nanoparticules with bis-acridinium lucigenine
Synthesis of a new type of bimetallic Ag@Au nanostars displaying broad sensitivity in plasmonic detection of alzheimer biomarkers
Norm of the electric field distribution on the surface of a dimer made of silver, with radius 20nm and  gap 2nm at the resonance wavelength. The mode is excited by a plane wave with the electric field parallel to the axis of the dimer.
C/ Serrano 121 - 123; 28006 Madrid, SPAIN. Tel: +34 91 5616800; Fax: +34 91 5645557