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14 August 2001 Numerical study of the eigenmodes of selective microdevices with multivalued corrugations
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Proceedings Volume 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications; (2001) https://doi.org/10.1117/12.437150
Event: IV Iberoamerican Meeting of Optics and the VII Latin American Meeting of Optics, Lasers and Their Applications, 2001, Tandil, Argentina
Abstract
In this paper we solve the homogeneous problem of an almost closed cavity in a ground plane, where the shape of the cavity is described by a multivalued function. To solve this proem we find numerically the complex depths of the cavity for which the determinant of the scattering matrix vanish. These zeros correspond to the resonant frequencies of the cavity; the real part represents the depth at which the resonance takes place, and the imagery part acknowledges for the quality of the resonances. We consider the excitation of the two lowest eigenmodes of each cavity and show that the complex resonant depths coincide with the anomalies present in the diffraction reasons of an infinite gratin formed by this kind of cavities.
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Diana C. Skigin and Ricardo A. Depine "Numerical study of the eigenmodes of selective microdevices with multivalued corrugations", Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); https://doi.org/10.1117/12.437150
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