Experimental cross-polarization detection of coupling far-field light to highly confined plasmonic gap modes via nanoantennas

Language
en
Document Type
Article
Issue Date
2012-11-05
Issue Year
2011
Authors
Wen, Jing
Banzer, P.
Kriesch, A.
Ploss, D.
Schmauss, B.
Peschel, U.
Editor
Abstract

We experimentally demonstrate the coupling of far-field light to highly confined plasmonic gap modes via connected nanoantennas. The excitation of plasmonic gap modes is shown to depend on the polarization, position, and wavelength of the incident beam. Far-field measurements performed in crossed polarization allow for the detection of extremely weak signals re-emitted from gap waveguides and can increase the signal-to-noise ratio dramatically.

Journal Title
Applied Physics Letters 98.10 (2011): 05.11.2012 <http://apl.aip.org/resource/1/applab/v98/i10/p101109_s1>
Citation
Applied Physics Letters 98.10 (2011): 05.11.2012 <http://apl.aip.org/resource/1/applab/v98/i10/p101109_s1>
DOI
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