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Role of propagating slit mode in enhanced transmission through slit arrays in a metallic films

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Abstract

The mechanisms responsible for enhanced transmission of electromagnetic wave through an array of subwavelength slits in a metallic film are analyzed. Theoretical model of the enhanced transmission which takes into account the penetration of electromagnetic field into real metal is developed. Semi-analytical model based on Fabry–Perot formula is considered. Comparison of theoretical model, semi-analytical model and results of numerical simulation of Maxwell equations in time-dependent form (FDTD method) for silver with various geometric parameters is presented. The roles of surface plasmons and plasmon localized along slits are studied.

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Authors and Affiliations

  1. Moscow Institute of Physics and Technology State University, Institusky Pereulok, 9, 141700, Dolgoprundny, Moscow Region, Russia

    Viktoriia E. Babicheva & Yurii E. Lozovik

  2. Institute of Spectroscopy of Russian Academy of Sciences, Fizicheskaya ulica, 5, 142190, Troitsk, Moscow region, Russia

    Viktoriia E. Babicheva & Yurii E. Lozovik

Authors
  1. Viktoriia E. Babicheva
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  2. Yurii E. Lozovik
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Correspondence to Viktoriia E. Babicheva.

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Babicheva, V.E., Lozovik, Y.E. Role of propagating slit mode in enhanced transmission through slit arrays in a metallic films. Opt Quant Electron 41, 299–313 (2009). https://doi.org/10.1007/s11082-010-9359-1

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  • DOI: https://doi.org/10.1007/s11082-010-9359-1

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