Title :
Qualitative change of resonant peaks in thermal emission from periodic array of microcavities
Author :
Kusunoki, E. ; Takahara, J. ; Kobayashi, T.
Author_Institution :
Div. of Adv. Electron. & Opt. Sci., Osaka Univ., Japan
Abstract :
Experimental results are reported of thermal emission from tantalum surfaces having a two-dimensional periodic army of microcavities. Thermal emission from such surfaces has clear peaks caused by two different resonances of electromagnetic waves. It is found that the physical origin of the resonant peaks changes when the aperture ratio of the surface increases.
Keywords :
emissivity; microcavities; periodic structures; polaritons; surface electromagnetic waves; surface plasmon resonance; tantalum; Ta; Ta surfaces; electromagnetic wave resonances; microcavity periodic array; relative spectral emissivity; resonant peaks; surface aperture ratio; thermal emission; thermally excited surface plasmon polaritons; two-dimensional periodic array;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030004
