title: A case study on the reciprocity in light scattering computations.
abstract: The fulfillment of the reciprocity by five publicly available scattering programs is investigated for a number of different particles. Reciprocity means that the source and the observation point of a given scattering configuration can be interchanged without changing the result. The programs under consideration are either implementations of T-matrix methods or of the discrete dipole approximation. Similarities and differences concerning their reciprocity behavior are discussed. In particular, it is investigated whether and under which conditions reciprocity tests can be used to evaluate the scattering results obtained by the different programs for the given particles.
authors.affiliation: Department for Atmospheric Processors, Remote Sensing Technology Institute, German Aerospace Center (DLR), Kalkhorstweg 53, D-17235 Neustrelitz, Germany. Karsten.Schmidt@dlr.de
authors.forename: Karsten
authors.initials: K
authors.lastname: Schmidt
authors.forename: Maxim A
authors.initials: MA
authors.lastname: Yurkin
authors.forename: Michael
authors.initials: M
authors.lastname: Kahnert
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D008027:Light; D008962:Models, Theoretical; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation; D012984:Software; D012986:Software Validation