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Proceedings Paper

Limits of luminescence efficiency enhancement by surface plasmon polaritons
Author(s): Jacob B. Khurgin; Gregory Sun
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Paper Abstract

We develop a rigorous theory of the enhancement of spontaneous emission from a light-emitting device via coupling the radiant energy in and out of surface plasmon polaritons (SPPs) on the metal-dielectric interface. We show that while the efficiency of coupling into the SPP mode can be quite high, the radiative efficiency of the SPP itself is relatively low, with a substantial fraction of the energy lost in the metal. Using the GaN/Ag system as an example we obtain easy-to-interpret analytical results that unequivocally indicate that using SPP pays off only for emitters that have medium-to-low luminescence efficiency; thus the SPP applications should be limited to those in sensing and analysis rather than in the development of efficient light sources.

Paper Details

Date Published: 25 September 2007
PDF: 8 pages
Proc. SPIE 6638, Photonic Metamaterials, 66380R (25 September 2007); doi: 10.1117/12.737171
Show Author Affiliations
Jacob B. Khurgin, The Johns Hopkins Univ. (United States)
Gregory Sun, Univ. of Massachussetts Boston (United States)

Published in SPIE Proceedings Vol. 6638:
Photonic Metamaterials
Mikhail A. Noginov; Nikolay I. Zheludev; Allan D. Boardman; Nader Engheta, Editor(s)

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