Abstract
We present simulation results on the propagation characteristics of
active plasmonic waveguides at 1.55 $\mu$m wavelength based on semiconductors as the active gain media. Three
waveguide structures were investigated: metal rib, metal-semiconductor-metal
(MSM), and triangular metal groove. In all three structures, we observed strong
plasmon mode confinement with nanoscale spot-sizes and corresponding simulated
gain values compatible with existing semiconductor technology. We show the
effect of systematic modification of waveguide geometry on the required gain
for achieving lossless propagation in all the three plasmonic waveguide structures.
We demonstrate that lossless propagation with subwavelength spot sizes well
below the diffraction limit of light can be obtained by controlling the geometrical
parameters of the proposed waveguides.
© 2009 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription