Longitudinal chirality , enhanced non - reciprocity , and nano - scale planar one - way guiding
نویسنده
چکیده
When a linear chain of plasmonic nano-particles is exposed to a transverse DC magnetic field, the chain modes are elliptically polarized, in a single plane parallel to the chain axis; hence, a novel longitudinal plasmon-rotation is created. If, in addition, the chain geometry possesses longitudinal rotation, e.g. by using ellipsoidal particles that rotate in the same plane as the plasmon rotation, strong non-reciprocity is created. The structure possesses a new kind of chirality–the longitudinal chirality–and supports one-way guiding. Since all particles rotate in the same plane, the geometry is planar and can be fabricated by printing leaf-like patches on a single plane. Furthermore, the magnetic field is significantly weaker than in previously reported one-way guiding structures. These properties are examined for ideal (lossless) and for lossy chains.
منابع مشابه
Longitudinal chirality, enhanced nonreciprocity, and nanoscale planar one-way plasmonic guiding
When a linear chain of plasmonic nanoparticles is exposed to a transverse dc magnetic field, the chain modes are elliptically polarized in a single plane parallel to the chain axis; hence, a new chain mode of longitudinal plasmon rotation is created. If, in addition, the chain geometry possesses longitudinal rotation, e.g., by using ellipsoidal particles that rotate in the same plane as the pla...
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