Narrow-band plasmonic thermal emitter using plasmonic nanochannel structure

Abstract

A plasmonic nanochannel structure consisting of periodic vertical Au/Si/Au nanochannels connected by U-shaped gold layers is demonstrated as a narrow-band plasmonic thermal emitter. Due to coupling of localized surface plasmons in the channels and propagating surface plasmons under the U-shaped gold layers, a narrow-band emission peak is observed.