Publication Abstracts

Mishchenko and Travis 1994

Mishchenko, M.I., and L.D. Travis, 1994: T-matrix computations of light scattering by large spheroidal particles. Opt. Commun., 109, 16-21, doi:10.1016/0030-4018(94)90731-5.

It is well known that T-matrix computations of light scattering by nonspherical particles may suffer from the ill-conditionality of the process of matrix inversion, which has precluded calculations for particle size parameters larger than about 25. It is demonstrated that calculating the T-matrix using extended-precision instead of double-precision floating-point variables is an effective approach for suppressing the numerical instability in computations for spheroids and allows one to increase the maximum particle size parameters for which T-matrix computations converge by as significant a factor as 2-2.7. Yet this approach requires only a negligibly small extra memory, an affordable increase in CPU time consumption, and practically no additional programming effort. As a result, the range of particle size parameters, for which rigorous T-matrix computations of spheroidal scattering can be performed, now covers a substantial fraction of the gap between the domains of applicability of the Rayleigh and geometrical optics approximations.

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BibTeX Citation

  author={Mishchenko, M. I. and Travis, L. D.},
  title={T-matrix computations of light scattering by large spheroidal particles},
  journal={Optics Communications},

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RIS Citation

ID  - mi07600n
AU  - Mishchenko, M. I.
AU  - Travis, L. D.
PY  - 1994
TI  - T-matrix computations of light scattering by large spheroidal particles
JA  - Opt. Commun.
JO  - Optics Communications
VL  - 109
SP  - 16
EP  - 21
DO  - 10.1016/0030-4018(94)90731-5
ER  -

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