One-mode model and Airy-like formulae for one-dimensional metallic gratings
- 21 December 1999
- journal article
- Published by IOP Publishing in Journal of Optics A: Pure and Applied Optics
- Vol. 2 (1), 48-51
- https://doi.org/10.1088/1464-4258/2/1/309
Abstract
We present a semi-analytical model that quantitatively predicts the transmission, the absorption and the resonance locations of one-dimensional lamellar metallic gratings with subwavelength slit apertures. The model relies on the fact that subwavelength apertures perforated in metallic films behave like monomode waveguides and provide Airy-like formulae for the transmission and reflection coefficients. Limitations are outlined for too shallow grating depths.Keywords
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