Services on Demand
Journal
Article
Indicators
- Cited by SciELO
- Access statistics
Related links
- Similars in SciELO
Share
Revista mexicana de física
Print version ISSN 0035-001X
Abstract
MATA-MENDEZ, O.; AVENDANO, J. and CHAVEZ-RIVAS, F.. Estudio teórico y numérico de la difracción en óptica electromagnética. VII: Resonancias en la transmisión por una rendija en el régimen de sublongitud de onda. Rev. mex. fis. [online]. 2006, vol.52, n.3, pp.190-198. ISSN 0035-001X.
Using a rigorous theory we study the diffraction of TM-polarized plane waves by a slit of width l in a screen of infinite conductivity and thickness h. We have determined the resonances that appear when the incident wavelength is bigger than the slit width (subwavelength regime). We analyze numerically the transmission coefficient and the normally diffracted energy as functions of the incident wavelength, the screen thickness, and the slit width. We have found that both quantities present high anomalous values (resonances) for certain incident wavelengths radiation. Also, we show numerically that there are linear relationships between the resonant amplitudes and the optogeometrical parameters of the system, as well as among the same resonant magnitudes.
Keywords : Diffraction; optical resonances; subwavelength regime.