Data di Pubblicazione:
2022
Citazione:
On the quasi-universality of the forward light scattering lobe for micrometric objects / M.A.C. Potenza, L. Cremonesi. - In: JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER. - ISSN 0022-4073. - 278:(2022 Feb), pp. 108028.1-108028.6. [10.1016/j.jqsrt.2021.108028]
Abstract:
A quasi-universality property of Mie scattering was reported in a recent publication by C.M. Sorensen [J. Quant. Spectrosc. Radiat. Transf. (2013) 131, 3]: the authors represent the forward scattered intensity, normalized by the differential Rayleigh cross section, as a function of the coupling parameter. Here we provide clear experimental evidence of this result; the Sorensen plots are produced without any free parameter for pure water droplets suspended in air and oil-in-water emulsions measured by the Single Particle Extinction and Scattering method. In addition, as inferred by Sorensen, we find that non-spherical objects deviate from the quasi-universality behavior of spheres by applying the same approach to mineral dust. Notably, the larger discrepancies occur in the wavelength-scale size range. These plots can widen the field of diagnostics in the critical micrometric size range.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
42.25.Fx; 42.68.Mj; 78.66.Vs; Aerosol optical properties; Microparticles; Mie scattering;
Elenco autori:
M.A.C. Potenza, L. Cremonesi
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