Light propagation in nonuniform plasmonic subwavelength waveguide arrays |
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| Authors: | Massimiliano Guasoni Costantino De Angelis |
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| Institution: | Dipartimento di Elettronica per l’Automazione and Consorzio Interuniversitario per le Scienze Fisiche della Materia, Università di Brescia, via Branze 38, Brescia 25123, Italy |
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| Abstract: | We study light propagation in nanoscale periodic structures composed of dielectric and metal in the visible range. We demonstrate that diffraction curves of nonuniform waveguide arrays can be tailored by varying the geometric and dielectric features of the waveguides. The results obtained from a proper formulation of coupled mode theory for nonuniform arrays are validated through numerical solution of Maxwell equations in frequency domain. |
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| Keywords: | Plasmonics Waveguide arrays Discrete diffraction |
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