Share Email Print
cover

Proceedings Paper

Unusual thermal emission from a three-dimensional metallic photonic crystal
Author(s): Shawn-Yu Lin; Mei-Li Hsieh; Rajeev Shenoi; James Bur
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We report the observation of unusual thermal radiation at elevated temperatures (T=400-900K) from a three-dimensional metallic photonic-crystal composite that includes a micro-cavity. Upon thermal excitation by a heating element of a large heat-mass and a constant temperature (heat bath), its emissive power at resonant wavelengths exceeds a blackbody’s at nominally the same surface temperature. The possible explanations include, but are not limited to, angular concentration of light emission, slightly lower lattice-temperature for a reference blackbody and also a significant pumping of hot electrons at resonance such that our sample’s electron-temperature is higher than its latticetemperature.

Paper Details

Date Published: 12 September 2014
PDF: 4 pages
Proc. SPIE 9162, Active Photonic Materials VI, 91621H (12 September 2014); doi: 10.1117/12.2060757
Show Author Affiliations
Shawn-Yu Lin, Rensselaer Polytechnic Institute (United States)
Mei-Li Hsieh, Rensselaer Polytechnic Institute (United States)
National Chiao Tung Univ. (Taiwan)
Rajeev Shenoi, Rensselaer Polytechnic Institute (United States)
James Bur, Rensselaer Polytechnic Institute (United States)


Published in SPIE Proceedings Vol. 9162:
Active Photonic Materials VI
Ganapathi S. Subramania; Stavroula Foteinopoulou, Editor(s)

© SPIE. Terms of Use
Back to Top