Rigorous electromagnetic analysis of resonant sub-wavelength metallic gratings by parametric Fourier modal method

被引:0
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作者
Gérard Granet
机构
[1] Université Blaise Pascal,Laboratoire des Sciences et Matériaux pour L'Electronique et d'Automatique, Unité Mixte de Recherche Associée au Centre national de la Recherche Scientifique
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关键词
Fourier modal method; electromagnetic analysis; metallic gratings;
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摘要
Electromagnetic TM modes of metallic lamellar reflection or transmission gratings are analyzed by means of the parametric fourier modal method. We show that the resonant optical response of such devices is due to the excitation of guided waves inside the slits. Our rigorous methods allows us to define a resonance condition number and to calculate the field everywhere inside the grating layer.
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页码:471 / 483
页数:12
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