| Titre : | Direct measurement of thermal emission from a fabry–perot cavity resonator (2012) |
| Auteurs : | L. P. Wang, Auteur ; S. Basu, Auteur ; Z. M. Zhang, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Journal of heat transfer (Vol. 134 N° 7, Juillet 2012) |
| Article en page(s) : | 09 p. |
| Note générale : | heat transfer |
| Langues : | Anglais |
| Index. décimale : | 536 (Chaleur. Thermodynamique) |
| Tags : | high temperature ; thermal emission ; thin films ; wave interference |
| Résumé : | There have been growing interests in selective control of thermal emission by using micro/nanostructures. The present study describes direct measurements of infrared thermal emission at elevated temperatures of an asymmetric Fabry–Perot resonator at variable angles for each polarization. The multilayered structure mainly contains a SiO2 optical cavity sandwiched between a thick (opaque) Au film and a thin Au film. Metallic adhesive and diffusion-barrier layers were deposited on a Si substrate before depositing the thick Au film. A dielectric protection layer was deposited atop the thin Au film to prevent oxidation at high temperatures. A SiC wafer was used as the reference to test the emittance measurement facility, which includes a heated sample holder, a blackbody source, mirror assembly, a polarizer, and a Fourier-transform infrared spectrometer with different detectors. The measured emittance spectra of the Fabry–Perot structure exhibit peak broadening and shifting as temperature increases; the mechanisms are elucidated by comparison with theoretical modeling. |
| DEWEY : | 536 |
| ISSN : | 0022-1481 |
| En ligne : | http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO000134000007072701000001&idtype=cvips&gifs=Yes&ref=no |
