Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1785093 | Infrared Physics & Technology | 2006 | 5 Pages |
Abstract
Absorption of surface plasmons (SP) guided by metal surface covered with a transparent layer (“cladding layer”) at terahertz frequencies has been studied both experimentally and by computer simulations. It was found that presence of the layer may increase SP absorption by about four orders of magnitude as compared with the ideal metal surface. Experiments performed with aluminum and copper metal specimens using free-electron laser radiation (90Â cmâ1) proved that SP absorption increases with the layer formation. But this increase turned out to be not as large as predicted and SP propagation length along the uncovered metal surface was at least one order of magnitude smaller than it should be according to Drude model.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Atomic and Molecular Physics, and Optics
Authors
G.N. Zhizhin, A.K. Nikitin, G.D. Bogomolov, V.V. Zavialov, Young Uk Jeong, Byung Cheol Lee, Seong Hee Park, Hyuk Jin Cha,