Wauer, J.J.WauerSchmidt, K.K.SchmidtRother, T.T.RotherErnst, T.T.ErnstHess, M.M.Hess2022-03-032022-03-032004https://publica.fraunhofer.de/handle/publica/20735510.1364/AO.43.006371We present the methodological background, the range of applicability, and the on-line usage of two software packages, MIESCHKA and CYL, which we have developed for light-scattering analysis on nonspherical particles. MIESCHKA solves Maxwell's equations in a rigorous way but is restricted to axisymmetric geometries, whereas CYL is an approximation for finite columns with nonspherical cross sections. We have established an easy on-line access to both of these programs through the Virtual Laboratory. Its generic software infrastructure was designed to simplify the web-based usage and to support the intercomparability of scientific software.en004006535journal article