Mode conversion at diffracting apertures in millimeter and submillimeter wave optical systems
作者： J.A. Murphy , S. Withington , A. Egan
DOI: 10.1109/22.247913
关键词: Scattering 、 Beam (structure) 、 Light scattering 、 Diffraction 、 Axial symmetry 、 Waveguide 、 Optics 、 Physics 、 Aperture 、 Lens (optics)
摘要: Diffraction effects, which occur when the fields in a beam waveguide are truncated at absorbing stops, can be conveniently analyzed using scattering-matrix theory applied to Gaussian-beam modes. The authors present recursion relationships for elements of scattering matrix nonaxially symmetric illuminates an axially stop. They demonstrate technique by calculating total loss and profiles system comprising diagonal horn, lens, window, two off-axis mirrors. finite size each component is taken into account. >
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