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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-24 21:12 |
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Conference: Bucharest University Faculty of Physics 2011 Meeting
Section: Solid State Physics and Materials Science
Title:
Analysis of some specific properties of plasmonic nanostructures and their applications
Authors:
Ana Ioanid, Marilena Dieaconu, St.Antohe
Affiliation:
Faculty of Physics, University of Bucharest, P.O.BOX MG-11, Magurele 077125, Romania
E-mail
ana_ioanid@yahoo.com
Keywords:
noble metal plasmonic nanostructures, surface plasmons, surface plasmon resonance, namosensing
Abstract:
Plasmonics is an emergent research field enableging the elements for the development of all forms of nanotechnologies, due to their possibilities of controlling light at the nanometer novel, well below the wavelength of light. The main goal of this domain is that to examine the properties of the collective electronic excitations in noble metal films or nanoparticles known as surface plasmons. At surface plasmon resonance frequency, accurs amplification of the incident electrical field intensity. For the silver and gold nanoparticles, the spatial range of the amplified field is strongly dependent on nanoparticle size, shape, interparticle spacing and local dielectric environment.
The simplest theoretical approach available for modelling the optical properties of metalic nanoparticles is classical electrodynamics, i.e., solving Maxwell’s equations with the bulk metal dielectric permittivity using various theoretical approachs or from experimental measurements.
In this work we present an analysis of some specific properties of plasmonic nanostructures in the electrostatics approximation frame, connecting with possible applications in the fields of catalysis, biosensing,electronics and optics.
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