Enhancing the radiative rate in III-V semiconductor plasmonic core-shell nanowire resonators.
We investigate the radiative properties of plasmonic core-shell nanowire resonators and, using boundary element method calculations, demonstrate enhanced radiative decay rate by up to 3500 times in nanoscale compound semiconductor/metal cavities. Calculation of the local density of optical states enables identification of new types of modes in cavities with mode volumes on the order of 10(-4)(λ/n)(3). These modes dramatically enhance the radiative decay rate and significantly modify the polarization of far-field emission.
Thomas J. Watson Laboratory of Applied Physics, California Institute of Technology, Pasadena, California 91125, USA.
Carrie E
CE
Hofmann
F Javier García
FJ
de Abajo
Harry A
HA
Atwater
D003198:Computer Simulation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008956:Models, Chemical; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000295:instrumentation*; D010316:Particle Size; D012666:Semiconductors; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D014159:Transducers