The excitation of surface plasmons at a f lat interface between a uniaxial crystal and a metal is investigated theoretically. We show that strong couplings between surface plasmons and light incident from the crystal can be obtained without corrugation of the surface. These couplings are associated with signif icant reductions in the ref lectivity of the structure and with strong enhancements of the electromagnetic f ield on the surface of the crystal. Numerical examples obtained for a f lat interface between sodium nitrate and gold show the existence of critical orientations of the optic axis for which all the incident power is absorbed by the metal. © 1995, Optical Society of America.
Documento: | Artículo |
Título: | Excitation of surface plasmons and total absorption of light at the flat boundary between a metal and a uniaxial crystal |
Autor: | Depine, R.A.; Gigli, M.L. |
Filiación: | Grupo de Electromagnetismo Aplicado Departamento de Física, Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires, Ciudad Universitaria, Pabellón I, 1428 Buenos Aires, Argentina |
Año: | 1995 |
Volumen: | 20 |
Número: | 21 |
Página de inicio: | 2243 |
Página de fin: | 2245 |
DOI: | http://dx.doi.org/10.1364/OL.20.002243 |
Título revista: | Optics Letters |
Título revista abreviado: | Opt. Lett. |
ISSN: | 01469592 |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01469592_v20_n21_p2243_Depine |