Emission enhancement behaviors in the coupling between surface plasmon polariton on a one-dimensional metallic grating and a light emitter
Resource
Applied Physics Letters 91: 233104
Journal
Applied Physics Letters
Journal Volume
91
Journal Issue
23
Date Issued
2007-12
Author(s)
Abstract
The authors study numerically the enhancements of dipole radiation rate and emission efficiency in a structure of a sinusoidal interface between a half space of metal and a half space of dielectric. The surface plasmon polaritons (SPPs) generated at the interface couple with the dipole to enhance its radiation rate. The energy dependence of radiation rate relies on the factors of SPP density of state, dipole position, and the emission efficiency. Below the light line, the emission efficiency is controlled by the localized surface plasmon (SP) field distribution in coupling two counterpropagating SPP modes near the Brillouin zone boundary. A localized SP field distribution of higher intensity and higher emission efficiency leads to a higher dipole radiation rate and a higher emission fraction.
SDGs
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
17.pdf
Size
343.8 KB
Format
Adobe PDF
Checksum
(MD5):229aaab7ff21e3db53d96a699ca90c74