Ph Lalanne et al 2000 J. Opt. A: Pure Appl. Opt. 2 48 doi:10.1088/1464-4258/2/1/309
One-mode model and Airy-like formulae for one-dimensional metallic gratings
Ph Lalanne
, J P Hugonin, S Astilean
, M Palamaru and K D Möller§
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.
- PACS
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42.25.Bs Wave propagation, transmission and absorption
78.66.Bz Metals and metallic alloys
- Subjects
- Dates
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Issue 1 (January 2000)
Received 17 September 1999, in final form 4 November 1999
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One-mode model and Airy-like formulae for one-dimensional metallic gratings
Ph Lalanne et al 2000 J. Opt. A: Pure Appl. Opt. 2 48
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