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Proceedings Paper

Resonant effects in compound diffraction gratings
Author(s): Diana C. Skigin; Susana I. Grosz; Angela N. Fantino
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Paper Abstract

We give numerical evidence of a new kind of resonances that appear in infinite perfectly conducting gratings comprising a finite number of grooves in each period, when illuminated by a normally incident p-polarized plane wave. The resonances appear when a particular distribution of the phase of the electromagnetic field inside the cavities take place, and are identified as sharp peaks in the specularly reflected efficiency. These resonances are accompanied by a significant intensification of the interior field. The cavities considered are rectangular and the diffraction problem is solved for s and p polarization by using the modal method.

Paper Details

Date Published: 14 August 2001
PDF: 4 pages
Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); doi: 10.1117/12.437065
Show Author Affiliations
Diana C. Skigin, Univ. de Buenos Aires (Argentina)
Susana I. Grosz, Univ. de Buenos Aires (Argentina)
Angela N. Fantino, Consejo Nacional de Investigaciones Cientificas y Tecnicas (Argentina)


Published in SPIE Proceedings Vol. 4419:
4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications

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