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Communication Dans Un Congrès Année : 2012

3D interaction of Gaussian beams with dichroic surfaces for the modeling of quasi-optical systems

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Résumé

In quasi-optical systems, dichroic surfaces are used to split, filter, or mix signals. Such surfaces cannot be modeled by existing Gaussian-beam methods. In this article we propose a technique to model the interaction of a Gaussian beam (GB) with a dichroic surface based on a matching in the spectral domain. For a GB illumination of the surface, the reflected and transmitted fields are approximated by one reflected and one transmitted Gaussian beams. Their characteristics are determined by means of the spectral matching through a second-order approximation of the dichroic surface response when excited by plane-waves. Numerical experiments and comparisons with reference solutions show the efficiency of the method in terms of accuracy and computation time.
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Dates et versions

hal-01022308 , version 1 (22-09-2014)

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Kevin Elis, Alexandre Chabory, Jérôme Sokoloff. 3D interaction of Gaussian beams with dichroic surfaces for the modeling of quasi-optical systems. ANTEM 2012, 15th International Symposium of ANtenna Technology and applied ElectroMagnetics, Jun 2012, Toulouse, France. pp 1-5, ⟨10.1109/ANTEM.2012.6262371⟩. ⟨hal-01022308⟩
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