Abstract

We report, for the first time to our knowledge, comparisons of light-scattering computations for large, randomly oriented, moderately absorbing spheroids based on the geometric-optics approximation and the exact T-matrix method. We show that in most cases the geometric-optics approximation is (much) more accurate for spheroids than for surface-equivalent spheres and can be used in phase function computations (but not in polarization computations) for nonspherical particles with size parameters as small as 60. Differences in the single-scattering albedo between geometric-optics and T-matrix results are surprisingly small, even for small size parameters.

© 1995 Optical Society of America

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References

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  1. H. C. van de Hulst, Light Scattering by Small Particles (Wiley, New York, 1957); C. F. Bohren, D. R. Huffman, Absorption and Scattering of Light by Small Particles (Wiley, New York, 1983).
  2. J. E. Hansen, L. D. Travis, Space Sci. Rev. 16, 527 (1974).
    [CrossRef]
  3. P. C. Waterman, Phys. Rev. D 3, 825 (1971).
    [CrossRef]
  4. M. I. Mishchenko, J. Opt. Soc. Am. A 8, 871 (1991); Appl. Opt. 32, 4652 (1993).
    [CrossRef]
  5. M. I. Mishchenko, L. D. Travis, Opt. Commun. 109, 16 (1994).
    [CrossRef]
  6. S. G. Warren, Appl. Opt. 23, 1206 (1984).
    [CrossRef] [PubMed]
  7. W. P. Arnott, Y. Y. Dong, J. Hallett, J. Geophys. Res. 99, 1371 (1994).
    [CrossRef]
  8. J. A. Stratton, Electromagnetic Theory (McGraw-Hill, New York, 1941); M. Born, E. Wolf, Principles of Optics (Pergamon, Oxford, 1965).
  9. K. Muinonen, K. Lumme, J. Peltoniemi, W. M. Irvine, Appl. Opt. 28, 3051 (1989).
    [CrossRef] [PubMed]
  10. A. Macke, Appl. Opt.32, 2780 (1993); “Single scattering properties of atmospheric ice crystals,” submitted toJ. Atmos. Sci.
    [CrossRef] [PubMed]
  11. A. A. Lacis, M. I. Mishchenko, in Aerosol Forcing of Climate, R. Charlson, J. Heintzenberg, eds. (Wiley, New York, 1995), p. 11.

1994 (2)

M. I. Mishchenko, L. D. Travis, Opt. Commun. 109, 16 (1994).
[CrossRef]

W. P. Arnott, Y. Y. Dong, J. Hallett, J. Geophys. Res. 99, 1371 (1994).
[CrossRef]

1991 (1)

1989 (1)

1984 (1)

1974 (1)

J. E. Hansen, L. D. Travis, Space Sci. Rev. 16, 527 (1974).
[CrossRef]

1971 (1)

P. C. Waterman, Phys. Rev. D 3, 825 (1971).
[CrossRef]

Arnott, W. P.

W. P. Arnott, Y. Y. Dong, J. Hallett, J. Geophys. Res. 99, 1371 (1994).
[CrossRef]

Dong, Y. Y.

W. P. Arnott, Y. Y. Dong, J. Hallett, J. Geophys. Res. 99, 1371 (1994).
[CrossRef]

Hallett, J.

W. P. Arnott, Y. Y. Dong, J. Hallett, J. Geophys. Res. 99, 1371 (1994).
[CrossRef]

Hansen, J. E.

J. E. Hansen, L. D. Travis, Space Sci. Rev. 16, 527 (1974).
[CrossRef]

Irvine, W. M.

Lacis, A. A.

A. A. Lacis, M. I. Mishchenko, in Aerosol Forcing of Climate, R. Charlson, J. Heintzenberg, eds. (Wiley, New York, 1995), p. 11.

Lumme, K.

Macke, A.

A. Macke, Appl. Opt.32, 2780 (1993); “Single scattering properties of atmospheric ice crystals,” submitted toJ. Atmos. Sci.
[CrossRef] [PubMed]

Mishchenko, M. I.

M. I. Mishchenko, L. D. Travis, Opt. Commun. 109, 16 (1994).
[CrossRef]

M. I. Mishchenko, J. Opt. Soc. Am. A 8, 871 (1991); Appl. Opt. 32, 4652 (1993).
[CrossRef]

A. A. Lacis, M. I. Mishchenko, in Aerosol Forcing of Climate, R. Charlson, J. Heintzenberg, eds. (Wiley, New York, 1995), p. 11.

Muinonen, K.

Peltoniemi, J.

Stratton, J. A.

J. A. Stratton, Electromagnetic Theory (McGraw-Hill, New York, 1941); M. Born, E. Wolf, Principles of Optics (Pergamon, Oxford, 1965).

Travis, L. D.

M. I. Mishchenko, L. D. Travis, Opt. Commun. 109, 16 (1994).
[CrossRef]

J. E. Hansen, L. D. Travis, Space Sci. Rev. 16, 527 (1974).
[CrossRef]

van de Hulst, H. C.

H. C. van de Hulst, Light Scattering by Small Particles (Wiley, New York, 1957); C. F. Bohren, D. R. Huffman, Absorption and Scattering of Light by Small Particles (Wiley, New York, 1983).

Warren, S. G.

Waterman, P. C.

P. C. Waterman, Phys. Rev. D 3, 825 (1971).
[CrossRef]

Appl. Opt. (2)

J. Geophys. Res. (1)

W. P. Arnott, Y. Y. Dong, J. Hallett, J. Geophys. Res. 99, 1371 (1994).
[CrossRef]

J. Opt. Soc. Am. A (1)

Opt. Commun. (1)

M. I. Mishchenko, L. D. Travis, Opt. Commun. 109, 16 (1994).
[CrossRef]

Phys. Rev. D (1)

P. C. Waterman, Phys. Rev. D 3, 825 (1971).
[CrossRef]

Space Sci. Rev. (1)

J. E. Hansen, L. D. Travis, Space Sci. Rev. 16, 527 (1974).
[CrossRef]

Other (4)

H. C. van de Hulst, Light Scattering by Small Particles (Wiley, New York, 1957); C. F. Bohren, D. R. Huffman, Absorption and Scattering of Light by Small Particles (Wiley, New York, 1983).

J. A. Stratton, Electromagnetic Theory (McGraw-Hill, New York, 1941); M. Born, E. Wolf, Principles of Optics (Pergamon, Oxford, 1965).

A. Macke, Appl. Opt.32, 2780 (1993); “Single scattering properties of atmospheric ice crystals,” submitted toJ. Atmos. Sci.
[CrossRef] [PubMed]

A. A. Lacis, M. I. Mishchenko, in Aerosol Forcing of Climate, R. Charlson, J. Heintzenberg, eds. (Wiley, New York, 1995), p. 11.

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Figures (3)

Fig. 1
Fig. 1

Phase function versus scattering angle for spheres and randomly oriented prolate spheroids. The phase functions for size parameters 30 and 10 are multiplied by 102 and 104, respectively.

Fig. 2
Fig. 2

Degree of linear polarization versus scattering angle for spheres and randomly oriented prolate spheroids.

Fig. 3
Fig. 3

Asymmetry parameter of the phase function versus size parameter for spheres and randomly oriented prolate and oblate spheroids.

Tables (1)

Tables Icon

Table 1 Single-Scattering Albedo versus Size Parameter for Spheres and Randomly Oriented Prolate and Oblate Spheroidsa

Metrics