Gain-assisted extraordinary optical transmission through periodic arrays of subwavelength apertures
Entity
UAM. Departamento de Física Teórica de la Materia CondensadaPublisher
Institute of Physics Publishing (IOP)Date
2012-01-13Citation
10.1088/1367-2630/14/1/013020
New Journal of Physics 14 (2012): 013020
ISSN
1367-2630 (print)DOI
10.1088/1367-2630/14/1/013020Funded by
This work was sponsored by the Spanish Ministry of Science and Innovation under the projects MAT2009-06609-C02 and CSD2007-046-NanoLight and by the Ramón y Cajal program (grant no. RyC-2009-05489)Editor's Version
http://dx.doi.org/10.1088/1367-2630/14/1/013020Subjects
FísicaRights
© IOP Publishing Ltd and Deutsche Physikalische GesellschaftAbstract
We theoretically investigate the amplification of extraordinary optical transmission (EOT) phenomena in periodic arrays of subwavelength apertures incorporating gain media. In particular, we consider a realistic structure consisting of an opaque silver film perforated by a periodic array of slits and clad on each side by an optically pumped dielectric thin film containing rhodamine dye molecules. By solving the semiclassical electronic rate equations coupled to rigorous finite-element simulations of the electromagnetic fields, we show how the resonant electric-field enhancement associated with EOT properties enables complete ohmic loss compensation at moderate pump intensity levels. Furthermore, our calculations show that, as a consequence of the strong spatial hole-burning effects displayed by the considered structures, three separate regimes of operation arise: the system can behave as an absorber, an optical amplifier or a laser, depending on the value of the pump intensity. A discussion on the feasibility of reaching the lasing regime in the considered class of structures is also presented
Files in this item
Google Scholar:Marani, Roberto
-
D'Orazio, Antonella
-
Petruzzelli, Vincenzo
-
Rodrigo, Sergio G.
-
Martín-Moreno, Luis
-
García Vidal, Fco. José
-
Bravo Abad, Jorge
This item appears in the following Collection(s)
Related items
Showing items related by title, author, creator and subject.