Coupling between surface plasmons via thermal emission of a dielectric layer sandwiched between two metal periodic layers
Journal
Applied Physics Letters
Journal Volume
91
Journal Issue
21
Date Issued
2007
Author(s)
Abstract
Metal/ Si O2 /metal trilayer thermally generated infrared emitters with different top and bottom periodic metal arrangements were fabricated and their emission spectra were measured. The coupling mechanisms of surface plasmon polaritons at top and bottom periodic metal structures were characterized. It is found that the top surface plasmon converted to light radiation directly, whereas the bottom surface plasmon can radiate out when its emission peak position matches that of the top surface plasmon. This opens the way to fabricate the high temperature operated, narrow bandwidth, and multiwavelength infrared light source. © 2007 American Institute of Physics.
Other Subjects
Electron emission; Electron transitions; Infrared spectroscopy; Light sources; Periodic structures; Surface plasmon resonance; Infrared light sources; Narrow bandwidth; Thermal emission; Dielectric films
Type
journal article