Journal article
Linearized T-matrix and Mie scattering computations
Journal of quantitative spectroscopy & radiative transfer, Vol.113(6), pp.425-439
04/2012
DOI: 10.1016/j.jqsrt.2011.11.014
Abstract
We present a new linearization of T-Matrix and Mie computations for light scattering by non-spherical and spherical particles, respectively. In addition to the usual extinction and scattering cross-sections and the scattering matrix outputs, the linearized models will generate analytical derivatives of these optical properties with respect to the real and imaginary parts of the particle refractive index, and (for non-spherical scatterers) with respect to the “shape” parameter (the spheroid aspect ratio, cylinder diameter/height ratio, Chebyshev particle deformation factor). These derivatives are based on the essential linearity of Maxwell's theory. Analytical derivatives are also available for polydisperse particle size distribution parameters such as the mode radius. The T-matrix formulation is based on the NASA Goddard Institute for Space Studies FORTRAN 77 code developed in the 1990s. The linearized scattering codes presented here are in FORTRAN 90 and will be made publicly available.
▶ T-matrix and Mie electromagnetic scattering theory with linearization. ▶ All optical property derivatives with respect to refractive index, particle shape factor. ▶ Cross-sections, F-matrix, expansion coefficients, polydisperse and bimodal applications. ▶ New FORTRAN 90 code packages
Details
- Title: Subtitle
- Linearized T-matrix and Mie scattering computations
- Creators
- R Spurr - RT Solutions, Inc. Cambridge, MA 02138, USAJ Wang - Department of Earth and Atmospheric Sciences, University of Nebraska—Lincoln, NE 68588, USAJ Zeng - Department of Earth and Atmospheric Sciences, University of Nebraska—Lincoln, NE 68588, USAM.I Mishchenko - NASA Goddard Institute for Space Studies, 2880 Broadway, New York, NY 10025, USA
- Resource Type
- Journal article
- Publication Details
- Journal of quantitative spectroscopy & radiative transfer, Vol.113(6), pp.425-439
- DOI
- 10.1016/j.jqsrt.2011.11.014
- ISSN
- 0022-4073
- eISSN
- 1879-1352
- Publisher
- Elsevier Ltd
- Language
- English
- Date published
- 04/2012
- Academic Unit
- Electrical and Computer Engineering; Civil and Environmental Engineering; Iowa Technology Institute; Physics and Astronomy; Chemical and Biochemical Engineering
- Record Identifier
- 9984104909102771
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