Title :
Analytical and numerical study of semi-infinite reciprocal and non-reciprocal plasmonic sub-diffraction chains
Author :
Hadad, Y. ; Steinberg, Ben Z.
Author_Institution :
Sch. of Electr. Eng., Tel-Aviv Univ., Ramat-Aviv, Israel
Abstract :
In reciprocal guiding structures, modes are arranged in reciprocal pairs. Therefore, at the termination of a waveguide, well confined forward propagating mode poorly couples to free space waves since the mode profile overlap with its backward propagating counterpart is perfect. Non-reciprocity breaks this picture, yielding a potential for strong coupling between guided modes and free space waves. In this paper we explore these concepts analytically and numerically using plasmonic sub-diffraction chains as a waveguiding platform.
Keywords :
light diffraction; optical waveguide theory; plasmonics; free space waves; guided modes; nonreciprocal plasmonic sub-diffraction chains; reciprocal guiding structures; semiinfinite reciprocal plasmonic sub-diffraction chains; Antenna radiation patterns; Convolution; Couplings; Equations; Green´s function methods; Optical waveguides; Plasmons;
Conference_Titel :
Electromagnetics in Advanced Applications (ICEAA), 2014 International Conference on
Conference_Location :
Palm Beach
Print_ISBN :
978-1-4799-7325-5
DOI :
10.1109/ICEAA.2014.6903938