Infrared selective emitters with thin films of polar materials
Abstract
Selective thermal emitters are materials which emit in narrow wavelength bands, unlike blackbody emitters which emit uniformly over all wavelengths. Materials with tailored emission/absorption characteristics can be useful for applications in energy conversion, energy conservation, chemical, and bio-chemical sensing. In this paper, we show that thin films of polar dielectric materials can act as selective emitters in two frequency bands on either side of the restrahlen band(s) of the polar material due to multiple reflections within the thin films.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- May 05, 2014
- Source ID
- 10.1063/1.4875699
Entities
People
- Arvind Narayanaswamy
- Carlo Canetta
- Jeff Mayo
Organizations
- Columbia University
- Office of Naval Research