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Light scattering simulation by oblate disc spheres using the null field method with discrete sources located in the complex plane

Hellmers, Jens und Wriedt, Thomas und Doicu, Adrian (2006) Light scattering simulation by oblate disc spheres using the null field method with discrete sources located in the complex plane. Journal of Modern Optics, 53 (3), Seiten 267-282. Taylor & Francis Group. DOI: 10.1080/09500340500361346.

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Kurzfassung

The T-matrix method, which is also known as the null field method (NFM) or extended boundary condition method (EBCM), has established itself as a well known and highly regarded method for calculating light scattering by non-spherical particles. Its biggest advantage is the possibility to obtain all information about the scattering characteristics of the particle and to store it into one matrix. This enables one to do additional investigations with low efforts. Unfortunately the standard NFM fails to converge for particles with extremely non-spherical particle shapes, like long cylinders or coin-like flat cylinders. In this paper we investigate light scattering by finite particles in the form of an oblate disc sphere, which can be described as flat cylinders with a rounded edge. We use an advanced form of the T-matrix method - the null field method with discrete sources (NFM-DS). By presenting light scattering results we would like to demonstrate the potential this advanced NFM-DS offers. It allows one to calculate particle shapes with aspect ratios (relation between radius and thickness of the particle) up to 100:1 and size parameters (relation between radius and wavelength) up to 30.

Dokumentart:Zeitschriftenbeitrag
Titel:Light scattering simulation by oblate disc spheres using the null field method with discrete sources located in the complex plane
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Hellmers, JensUniversity of Bremen
Wriedt, ThomasUniversity of Bremen
Doicu, AdrianNICHT SPEZIFIZIERT
Datum:Februar 2006
Erschienen in:Journal of Modern Optics
Referierte Publikation:Ja
In ISI Web of Science:Ja
Band:53
DOI :10.1080/09500340500361346
Seitenbereich:Seiten 267-282
Verlag:Taylor & Francis Group
Status:veröffentlicht
Stichwörter:Fibre Optics; Optical Communications; Electronics: Optics & Optoelectronics; Electrical & Computer Engineering: Optics & Optoelectronics; Electrical Engineering Communications: Optics & Optoelectronics; Optics, Optoelectronic Effects, Devices & Systems; Optoelectronics;
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Entwicklung von Atmosphärenprozessoren (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Methodik der Fernerkundung > Atmosphärenprozessoren
Hinterlegt von: Dr.rer.nat. Franz Schreier
Hinterlegt am:06 Mär 2007
Letzte Änderung:27 Apr 2009 13:04

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