Resonant modes in nested diffraction gratings

The diffraction problem of a plane wave impinging on a grating formed by nested cavities is presented. The nested cavities are formed by layers of perfectly conducting sheets that describe rectangular profiles. The problem is solved by means of the modal method, for 5 and p polarization modes. The e...

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Detalles Bibliográficos
Autores principales: Fantino, A.N., Grosz, S.I., Skigin, D.C., Marcano O. A., Paz J.L.
Formato: CONF
Materias:
Diffraction
Eigenmodes
Gratings
Resonances
Algorithms
Diffractive optics
Eigenvalues and eigenfunctions
Light polarization
Light scattering
Microwave antennas
Problem solving
Electromagnetic response
Geometrical parameters
Radio detection and ranging (RADAR) technologies
Diffraction gratings
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_0277786X_v5622_nPART3_p1405_Fantino
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:The diffraction problem of a plane wave impinging on a grating formed by nested cavities is presented. The nested cavities are formed by layers of perfectly conducting sheets that describe rectangular profiles. The problem is solved by means of the modal method, for 5 and p polarization modes. The electromagnetic response of the grating is analyzed, paying particular attention to the generation of resonances within the structure. The dependence of the resonances on the geometrical parameters of the grating is studied, and results of far and near field are shown. The results were checked and found in good agreement with those available in the literature for certain limit cases.

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