Coupling of surface plasmons between two silver films in a plasmonic thermal emitter
Journal
Applied Physics Letters
Journal Volume
91
Journal Issue
24
Date Issued
2007
Author(s)
Abstract
The emission spectra of AgSi O2 Ag trilayer plasmonic thermal emitters with various Si O2 thicknesses were investigated. By analyzing the relationship between emission peaks and thicknesses of Si O2, the coupling of surface plasmons between two silver films in a plasmonic thermal emitter is demonstrated and the coupling length is determined as well. Furthermore, the dispersion relation of plasmonic thermal emitter is detected by measuring the reflection spectra with various incident angles. This confirms that the main mechanism involved in the emission of a plasmonic thermal emitter is due to the excitation of surface plasmons. © 2007 American Institute of Physics.
Other Subjects
Electric excitation; Emission spectroscopy; Plasmons; Silver; Plasmonic thermal emitters; Silver films; Surface plasmon resonance
Type
journal article