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Welcome to the Surface Spectroscopies & Surface Plasmon Photonics Group



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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, Concepción Domingo Maroto,, Santiago Sánchez Cortés, Sagrario Martínez Ramírez, Paz Sevilla Sierra

 

Theorical Objetives:

  • Investigate theoretically the electrodynamic response of a variety of metal nanostructures (nanoshells, nanoantennas, nanostars, etc.) with emphasis on the impact of plasmon resonances on the enhancement mechanisms of Raman and fluorescence emission from adjacent molecules. Explore new metal & dielectric nanostructure configurations of interest in plasmonics, nano-optics, and metamaterials. (Contact: Jose A. Sánchez Gil).
Surface Charge Density distribution in a resonant mode of a 200 nm silver rod Electrical Near Field map of a dielectric nano shell Electrical Near Field map of a dielectric 200 nm silver rod

 
Gold Nanostars for attacking Cancer

 

 



 

 

 

 





 

 

 

 

 

 

 

 

 

 


Trace-detection of triphenylene by surface enhanced Raman spectroscopy using functionalized silver nanoparticules with bis-acridinium lucigenine

 

 

 

 









 

 

 

 




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


 

 

 

 

 

 

 

 

 

 

 

 

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