By Topic

Anomalous plasmonic band gap formation in two-dimensional slit arrays with different periods

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

8 Author(s)
Marrocco, V. ; Dipt. di Elettrotec. ed Elettron., Politec. di Bari, Bari, Italy ; Marani, R. ; Morea, G. ; Grande, M.
more authors

In this paper we investigate on the spectral behaviour of slit array realized in a thick gold film surrounded by a homogeneous environment. The study has been performed by means of 3D-FDTD based codes, including the modelling of the metal dispersion through Drude-Lorentz fitting. The numerical results show that when the period p of the slit array is comparable to a multiple of the source wavelength, impinging at normal incidence, and the slit size is small enough to consider the input-output interfaces virtually smooth, transmission diagrams exhibit a minimum around λmin, where a matching condition occurs. Moreover when random variations of the slit spacing (elementary cell of the periodic structure composed by different periodicities) are considered, the matching condition for the N-th resonant order is asymptotically equal to that obtained when an array of slits having constant spacing equal to the averaged value of all periodicities is considered.

Published in:

Transparent Optical Networks (ICTON), 2011 13th International Conference on

Date of Conference:

26-30 June 2011