Surface polaritons on left-handed spheres

Details Surface polaritons on left-handed spheres Surface polaritons on left-handed spheres

2007-07-16

arxiv.org/abs/0707.2349v3

Physical Review B 76, 195413 (2007)

Physics

Condensed Matter

Materials Science

v3: Typos corrected

Scientific paper

10.1103/PhysRevB.76.195413

We consider the interaction of an electromagnetic field with a left-handed sphere, i.e., with a sphere fabricated from a left-handed material, in the framework of complex angular momentum techniques. We emphasize more particularly, from a semiclassical point of view, the resonant aspects of the problem linked to the existence of surface polaritons. We prove that the long-lived resonant modes can be classified into distinct families, each family being generated by one surface polariton propagating close to the sphere surface and we physically describe all the surface polaritons by providing, for each one, its dispersion relation and its damping. This can be achieved by noting that each surface polariton corresponds to a particular Regge pole of the electric part (TM) or the magnetic part (TE) of the $S$ matrix of the sphere. Moreover, for both polarizations, we find that there exists a particular surface polariton which corresponds, in the large radius limit, to that supported by the plane interface. There also exists, for both polarizations, an infinite family of surface polaritons of whispering gallery type having no analogs in the plane interface case and specific to left-handed materials. They present a "left-handed behavior" (phase and group velocities are opposite) as well as a very weak damping. They could be very useful in the context of plasmonics or cavity quantum electrodynamics.

Affiliated with

Also associated with

No associations

Rating

Surface polaritons on left-handed spheres does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Surface polaritons on left-handed spheres, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface polaritons on left-handed spheres will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-195498