Frequency dependent power efficiency of a nanostructured surface plasmon coupler
Abbreviated Journal Title
Phys. Status Solidi-Rapid Res. Lett.
surface plasmons; plasmons; optical coupling; devices; WAVE-GUIDES; GAP; Materials Science, Multidisciplinary; Physics, Applied; Physics, ; Condensed Matter
Surface plasmon (SP) excitation on an extended thin metal film via a miniature nanoparticle-enhanced grating coupler is studied experimentally using leakage radiation spectroscopy. A universally applicable method for determining the efficiency of free-space SP excitation is developed, and the efficiency of the coupler is determined. Two distinct grating excitation modes are observed, as well as a particle-mediated excitation mode. The maximum observed coupling efficiency of the structure was approximately 3.5% at 615 nm and 670 nm, corresponding to the two grating modes of the structure. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Physica Status Solidi-Rapid Research Letters
"Frequency dependent power efficiency of a nanostructured surface plasmon coupler" (2010). Faculty Bibliography 2010s. 182.