Numerical study of guided modes in arrays of metallic nanowires.
We numerically investigate the band structure and guided modes within arrays of metallic nanowires. We show that bandgaps appear for a range of array geometries and that these can be used to guide light in these structures. Values of attenuation as low as 1.7 dB/cm are predicted for arrays of silver wires at communications wavelengths. This is more than 100 times smaller than the attenuation of the surface plasmon polariton modes on a single silver nanowire.
Poulton
C G
CG
Max-Plank Research Group (IOIP), University of Erlangen-Nuremberg, Erlangen, Germany. cpoulton@optik.uni-erlangen.de
Schmidt
M A
MA
Pearce
G J
GJ
Kakarantzas
G
G
Russell
P St J
PS