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arXiv · 1007.5259

Superradiance, subradiance, and suppressed superradiance of dipoles near a metal interface

J. J. Choquette·Karl-Peter Marzlin·B. C. Sanders
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Abstract

We theoretically characterize the collective radiative behaviour of N classical emitters near an interface between different dielectrics that supports the transfer of surface plasmon modes into the far-field of electromagnetic radiation. The phenomena of superradiance and surface plasmons can be combined to amplify the emitted radiation intensity S as S= A N^2 S_0 compared to a single emitter's intensity S_0 in free space. For a practical case study within the paper A=240, compared to A=1 in free space. We furthermore demonstrate that there are collective modes for which the intensity of the emitted radiation is suppressed by two orders of magnitude despite their supperadiant emission characteristics. A method to control the emission characteristics of the system and to switch from super- to sub-radiant behaviour with a suitably detuned external driving field is devised.

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J. J. Choquette, Karl-Peter Marzlin, B. C. Sanders. 2010-07-29. Superradiance, subradiance, and suppressed superradiance of dipoles near a metal interface. https://doi.org/10.1103/physreva.82.023827

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