Resonantly-enhanced transmission through a periodic array of subwavelength apertures in heavily-doped conducting polymer films

Matsui, Tatsunosuke and Vardenya, ZValy and Agrawal, Amit and Nahata, Ajay and Menon, Reghu (2006) Resonantly-enhanced transmission through a periodic array of subwavelength apertures in heavily-doped conducting polymer films. In: Applied Physics Letters, 88 (7). 071101-1-071101-3.

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Abstract

We observed resonantly-enhanced terahertz transmission through two-dimensional (2D) periodic arrays of subwavelength apertures with various periodicities fabricated on metallic organic conducting polymer films of polypyrrole heavily doped with PF6 molecules [PPy(PF6)]. The "anomalous transmission" spectra are in good agreement with a model involving surface plasmon polariton excitations on the film surfaces. We also found that the 'anomalous transmission' peaks are broader in the exotic metallic PPy(PF6) films compared to those formed in 2D aperture array in regular metallic films such as silver, showing that the surface plasmon polaritons on the PPy(PF6) film surfaces have higher attenuation.

Item Type:	Journal Article
Publication:	Applied Physics Letters
Publisher:	American Institute Of Physics
Additional Information:	Copyright of this article belongs to American Institute Of Physics.
Keywords:	polymer films;conducting polymers;optical polymers;optical films;optical arrays;surface plasmons;polaritons; submillimetre wave propagation;electromagnetic wave transmissio.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	08 Apr 2009 06:54
Last Modified:	19 Sep 2010 04:58
URI:	http://eprints.iisc.ac.in/id/eprint/17794

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