Title :
Localized toroidal dipole moment of spoof surface plasmon polaritons
Author :
Sang Soon Oh;John J. Wood;Seong-Han Kim;Chul-Sik Kee;Ortwin Hess
Author_Institution :
Blackett Laboratory, Department of Physics, Imperial College London, London SW7 2AZ, United Kingdom
Abstract :
At infrared wavelengths, we demonstrate subwavelength scale localization of spoof surface plasmon polaritons. Based on an analytical model and numerical simulations, we show that the defect mode has toroidal dipole moment and high Q factor.
Keywords :
"Optical surface waves","Dispersion","Metals","Surface waves","Plasmons","Q-factor","Optical diffraction"
Conference_Titel :
Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2015 11th Conference on
DOI :
10.1109/CLEOPR.2015.7375907
