Theses
< 2016>
2016-05-25
IVAN SILVEIRO
2016-05-30
ELSA PASSARO
2016-06-06
MARTÍ PERARNAU
2016-06-13
DOMINIK KUFER
2016-06-17
NICOLÒ ACCANTO
2016-06-22
MUSSIE BEIAN
2016-10-19
DAVID SO
2016-11-11
ANSHUMAN SINGH
2016-12-01
MIQUEL RUDÉ
2016-12-02
PETER WEBER

Plasmonic Response of Graphene Nanostructures



Ivan Silveiro
May 25th, 2016 IVAN SILVEIRO Nanophotonics Theory
ICFO-The Institute of Photonic Sciences


Doped graphene has attracted an enormous interest due to its extraordinary optoelectronic properties useful for nanophotonics. Specifically, its bidimensional nature and singular atomic structure are translated into an unconventional linear dispersion relation. Thus, when nanostructures of graphene are illuminated, the excited plasmons (collective oscillations of conduction electrons) possess salient features like high tunability and degree of confinement, enhancement of the electromagnetic fields, strong nonlocalities and nonlinearities...

In this thesis, we realize an in-depth study of the plasmonic response of doped graphene under different novel conditions. We focus on the theoretical concepts that could be useful for the present a general electrostatic scaling law in order find the graphene plasmon frequencies, we study the effects of inhomogeneous distributions of doping, we account for the substantial quantum-nonlocal and nonlinear effects over graphene plasmons, and finally, we present a new molecular sensing technique including graphene.


Wednesday, May 25, 11:30. Facultad de Óptica y Optometría, Universidad de Santiago de Compostela

Thesis Director: Prof. Dr. Javier García de Abajo