New Improvements for Mie Scattering Calculations
نویسندگان
چکیده
منابع مشابه
New Improvements for Mie Scattering Calculations
New improvements to compute Mie scattering quantities are presented. They are based on a detailed analysis of the various sources of error in Mie computations and on mathematical justifications. The algorithm developed on these improvements proves to be reliable and efficient, without size (x = 2πR/λ) nor refractive index (m = mR − imI) limitations, and the user has a choice to fix in advance t...
متن کاملGenerating bessel functions in mie scattering calculations using continued fractions.
A new method of generating the Bessel functions and ratios of Bessel functions necessary for Mie calculations is presented. Accuracy is improved while eliminating the need for extended precision word lengths or large storage capability. The algorithm uses a new technique of evaluating continued fractions that starts at the beginning rather than the tail and has a built-in error check. The conti...
متن کاملA modified fourier transform method for multiple scattering calculations in a plane parallel mie atmosphere.
A method for evaluating characteristics of the scattered radiation emerging from a plane parallel atmosphere containing large spherical particles is described. In this method, the normalized phase function for scattering is represented as a Fourier series whose maximum required number of terms depends upon the zenith angles of the directions of incident and of scattered radiation. Some results ...
متن کاملReduced light-scattering properties for mixtures of spherical particles: a simple approximation derived from Mie calculations.
The reduced scattering cross section per unit of volume Sigma'(s) identical withSigma(s)(1 - g) is an important parameter to describe light propagation in media with scattering and absorption. Mie calculations of the asymmetry factor g for nonabsorbing spheres and Q(sca), the ratio of the scattering cross section Sigma(s) and the particle cross section, show that Q(sca)(1 - g) = 3.28x(0.37)(m -...
متن کاملMultipole expansion of Bessel and Gaussian beams for Mie scattering calculations.
Multipole expansions of Bessel and Gaussian beams, suitable for use in Mie scattering calculations, are derived. These results allow Mie scattering calculations to be carried out considerably faster than existing methods, something that is of particular interest for time evolution simulations where large numbers of scattering calculations must be performed. An analytic result is derived for the...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Electromagnetic Waves and Applications
سال: 1991
ISSN: 0920-5071,1569-3937
DOI: 10.1163/156939391x00950