Superdecay of an excited atom placed near ” Left - Handed ” sphere
نویسنده
چکیده
The influence of a microsphere having simultaneously negative permittivity and permeability (Left-Handed Sphere) on decay rate of allowed (E 1) and forbidden (M 1) transitions is considered. It is found, that in contrast to usual (Right-Handed) materials it is possible to increase the decay rate by several orders of magnitude even in the case of sphere of small radii. This enhancement is due to the fact that there exist new type of resonance modes (LH surface modes). The analytical expressions for resonance frequencies and associated quality factors of the new modes are found.
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تاریخ انتشار 2001