Open AccessRegular and anomalous extraordinary optical transmission at the THz-gap
Author(s) -
S. А. Kuznetsov,
Miguel NavarroCía,
V. V. Kubarev,
Alexander V. Gelfand,
Miguel Beruete,
I. Campillo,
M. Sorolla
Publication year - 2009
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.011730
Subject(s) - transmittance , optics , polarization (electrochemistry) , terahertz radiation , extraordinary optical transmission , antisymmetric relation , photolithography , plasmon , materials science , physics , lithography , optoelectronics , surface plasmon , surface plasmon polariton , chemistry , mathematical physics
In this paper Anomalous Extraordinary Transmission (ET) is reported for s-polarization of low loss doubly periodic subwavelength hole arrays patterned on polypropylene (PP) substrates by conventional contact photolithography at the so-called THz-gap (1-10 THz). The unexpected enhanced transmittance for s-polarization (i.e. without spoof plasmons) was previously numerically demonstrated in subwavelength slits arrays. However, subsequently no experimental work has been devoted to this unexpected Extraordinary Transmission neither in subwavelength slits nor in subwavelength holes. Here, numerical study and experimental results of the Anomalous ET and the symmetric and antisymmetric transmittance modes associated with the already well-known p-polarization ET are shown alongside a systematically analysis of the frequency peaks as a function of hole size for both incident polarizations.