Abstract

Extinction cross section of large arbitrarily shaped randomly oriented nonspherical particles is always larger than the extinction cross section of spherical particles of the same volume. This theorem is proved rigorously for particles with the size parameter x ≫ 1. It is conjectured that the same is true for sufficiently wide polydispersions of particles with x > 15.

© 1977 Optical Society of America

Lower and upper bounds on extinction cross sections of arbitrarily shaped strongly absorbing or strongly reflecting nonspherical particles

Petr Chýlek and V. Ramaswamy
Appl. Opt. 21(23) 4339-4344 (1982)

Extinction cross sections of nonspherical particles in the anomalous diffraction approximation

Petr Chýlek and James D. Klett
J. Opt. Soc. Am. A 8(2) 274-281 (1991)

Scattering and extinction cross sections for a spherical particle coated with an oriented molecular layer

J. Roth and M. J. Dignam
J. Opt. Soc. Am. 63(3) 308-311 (1973)

Scattering from nonspherical Chebyshev particles. I: cross sections, single-scattering albedo, asymmetry factor, and backscattered fraction

Alberto Mugnai and Warren J. Wiscombe
Appl. Opt. 25(7) 1235-1244 (1986)

Light scattering by small particles in an absorbing medium*

Petr Chýlekt
J. Opt. Soc. Am. 67(4) 561-563 (1977)