Near-field computation using the null-field method |
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Authors: | Adrian Doicu |
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Affiliation: | a German Aerospace Center, Remote Sensing Technology Institute, Oberpfaffenhofen, 82234 Wessling, Germany b Institut für Werkstofftechnik, Badgasteiner Str. 3, 28359 Bremen, Germany |
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Abstract: | In this paper we analyze three methods for computing the total field in the near-zone region. These methods use the expansion of the scattered field outside the minimum circumscribing sphere, an integral representation of the scattered field and a vector spherical wave expansion of the near-zone field. Calculations of the total field within the circumscribing sphere are presented for dielectric prolate spheroids to compare the different methods. |
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Keywords: | Light scattering T-matrix Null-field method Near field Circumscribing sphere |
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