We report on the formation of plasmonic bandgaps in two-dimensional periodic arrangements of gold patches.Orthogonal arrays of subwavelength slits with different periodicities have been studied by means of a threedimensional finite-difference time-domain (FDTD) code, changing incident polarization and geometrical parameters. Spectral response of gold patches having different a form factor and surrounded by different media have been also investigated and compared in order to give a full description of bandgap shifts paving the way for the design of polarization-sensitive devices.
Plasmonic bandgap formation in two-dimensional periodic arrangements of gold patches with subwavelength gaps / Marani, R.; Grande, Marco; Marrocco, V.; D'Orazio, Antonella; Petruzzelli, Vincenzo; Vincenti, M. A.; De Ceglia, D.. - In: OPTICS LETTERS. - ISSN 0146-9592. - 36:6(2011), pp. 903-905. [10.1364/OL.36.000903]
Plasmonic bandgap formation in two-dimensional periodic arrangements of gold patches with subwavelength gaps
GRANDE, Marco;D'ORAZIO, Antonella;PETRUZZELLI, Vincenzo;
2011-01-01
Abstract
We report on the formation of plasmonic bandgaps in two-dimensional periodic arrangements of gold patches.Orthogonal arrays of subwavelength slits with different periodicities have been studied by means of a threedimensional finite-difference time-domain (FDTD) code, changing incident polarization and geometrical parameters. Spectral response of gold patches having different a form factor and surrounded by different media have been also investigated and compared in order to give a full description of bandgap shifts paving the way for the design of polarization-sensitive devices.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
