Surface plasmon-polaritons in multilayer nanostructures
DIPC Seminars
- Speaker
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Mikhail Vasilevskiy , Center of Physics and Dertament of Physics, University of Minho, Braga, Portugal
- When
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2012/11/06
13:00 - Place
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, Donostia-San Sebastián
- Add to calendar
-
iCal
Surface plasmon-polaritons (SPP) are evanescent electromagnetic (EM) waves
induced by the coupling of the EM field to conduction electrons near the
surface of a conductor. Its amplitude decays exponentially at both sides of
the interface. SPP?s properties are determined by the frequency-dependent
dielectric function of the conductor and the surrounding dielectric materials.
In this talk, SPPs in two types of multilayer nanostructures will be
considered: (i) monolayer grapheme sandwiched between two dielectrics, and
(ii) metallic film combined with one or several layers of semiconductor
nanocrystal quantum dots (QDs) produced by chemical synthesis and dispersed in
a dielectric matrix. The possibilities of using SPPs for making optical
switches and polarizers, in the case of (i), and for selective excitation of
QD light emitters, in the case of (ii), will be discussed.