30 August 2006 Theoretical study of enhanced transmission through subwavelength linear apertures flanked by periodic corrugations
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Abstract
Enhanced transmission through structures consisting of linear gratings surrounding a single subwavelength aperture in an opaque gold film is modeled using a commercial finite element model (FEM). The stability of the FEM and boundary conditions are discussed, and different field visualizations are explored to gain insight into field behavior. The results from the FEM were compared with experimental results, yielding excellent agreement. This lends confidence that the FEM is giving an accurate representation of the field behavior around the structure. The FEM was then used to examine how transmission enhancement depends on geometric properties of the structure and to gain insight into the mechanisms of transmission enhancement.
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P. D. Flammer, P. D. Flammer, I. C. Schick, I. C. Schick, J. M. Yarbrough, J. M. Yarbrough, C. G. Allen, C. G. Allen, G. Nuebel, G. Nuebel, E. J. Schick, E. J. Schick, J. M. Dahdah, J. M. Dahdah, J. T. Martineau, J. T. Martineau, M. A. Hurowitz, M. A. Hurowitz, R. E. Hollingsworth, R. E. Hollingsworth, R. T. Collins, R. T. Collins, } "Theoretical study of enhanced transmission through subwavelength linear apertures flanked by periodic corrugations", Proc. SPIE 6323, Plasmonics: Metallic Nanostructures and their Optical Properties IV, 63231Z (30 August 2006); doi: 10.1117/12.681267; https://doi.org/10.1117/12.681267
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