Laboratory simulation and modeling of size, shape distributed interstellar graphite dust analogues: A comparative study

Visible light scattering properties of irregularly shaped silica microparticles using laser based laboratory simulations for remote sensing and medical applications

“…The discrepancies in computational model in some of the cases are due to the restricted modeling of the particle shapes (using very few shapes) as acquired from the visible evidence (SEM micrographs), and lacks the efficiency of realistic modeling with a large number of irregular shapes. In our previous studies we have successfully reproduced the experimentally acquired light scattering patterns of highly irregular graphite and fayalite microparticles (dispersed in a wide size distribution range) [45,46], with a higher degree of accuracy by realistically modeling the particle shapes based on the characterized samples.…”

“…The particle surfaces are slightly deformed by displacing the volumetric meshes (provided in the software), to simulate the particle surface roughness and irregularities. The target generation processes are described in detail in our previous publications [45,46]. These representative models of the realistic particle samples are then converted to arrays of dipoles using another software package, DDSCAT Convert©, using 2 × 10 5 dipoles for each of the modeled geometries.…”