Dear MEEP users, I am trying to characterize the scattering properties of an object. In particular, I am interested in computing the scattering cross section and a number that indicates whether the object scatters mostly forward or backward. Thus, my idea was to compute an asymmetry factor similar to the one defined in eq. 3.40 here (https://www.ess.uci.edu/~ cmclinden/link/xx/node19.html).
While the scattering cross section can be obtained by the fluxes out of a surrounding box (as shown here http://juluribk.com/2011/ 06/01/scattering-extinction-absorption-cross-sections-of- silver-nanowires-infinite-cylinders-using-meep/), the only way I can think of to compute an asymmetry factor is to use the near2far field feature of MEEP and integrate over a spherical surface. This requires a lot of far-field evaluations which takes a lot of time. Is there a more clever approach to compute this number (or an equivalent quantity)? Thanks for your considerations. David Kleiven
_______________________________________________ meep-discuss mailing list meep-discuss@ab-initio.mit.edu http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
