Electromagnetic surface waves at a metal 2D photonic crystal interface

J. A. Gaspar-Armenta*, F. Villa-Villa

*Autor correspondiente de este trabajo

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

7 Citas (Scopus)


The conditions to observe and excite electromagnetic surface modes at the interface between a two-dimensional (2D) photonic crystal (PC) and bulk metal are studied. It is shown that these modes can exist in the region where bandgapsofthePCoverlapwiththeregionbelowtheplasmafrequencyofametalinthedispersi ondiagraminboth polarizations. The dispersion relation of these electromagnetic surface modes is determined numerically by con- sideringasystemofathinmetalliclayerincontactwithafinitePCofsomeperiods. Thereflectanceiscomputedby using the finite-difference time-domain (FDTD) method. With this method, it is shown that these modes can be excited and observedeven under normal incidence from a vacuum. For the studied system, the cell in contact with the metallic layer must be truncated in order to observe the interface mode. It is shown that we can select the fre- quencyofthemodeinsidethebandgapsbyproperlychoosingthetruncationparameter.

Idioma originalInglés
Páginas (desde-hasta)2271-2276
Número de páginas6
PublicaciónJournal of the Optical Society of America B: Optical Physics
EstadoPublicada - ago. 2013


Profundice en los temas de investigación de 'Electromagnetic surface waves at a metal 2D photonic crystal interface'. En conjunto forman una huella única.

Citar esto