28 October 2003 Optical properties of crossed metallodielectric gratings
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Abstract
In this paper we report an experimental and theoretical study of the optical properties of metallodielectric gratings with subwavelength gaps in the thin metal limit. A mask-free method of fabrication for large area submicron silver gratings on silica substrates has been developed using soft-lithographic techniques. By measuring the zeroth-order transmission of these gratings, both an edge anomaly associated with the Rayleigh wavelength and a resonant anomaly associated with the excitation of surface plasmons (SPs) are observed. A crossed grating configuration is studied: the presence of the additional crossed grating results in a dramatic widening of the plasmonic band gap relative to that of a 1D grating.
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Jennifer M. Steele, Jennifer M. Steele, Cristin E. Moran, Cristin E. Moran, Allen Lee, Allen Lee, Naomi J. Halas, Naomi J. Halas, } "Optical properties of crossed metallodielectric gratings", Proc. SPIE 5221, Plasmonics: Metallic Nanostructures and Their Optical Properties, (28 October 2003); doi: 10.1117/12.512739; https://doi.org/10.1117/12.512739
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