New approximate phase functions: test for nonspherical particles

In a recent paper, we described two approximate phase functions for the sca ttering of light by monodisperse particles. One phase function for particle s of size small or comparable to the wavelength of scattering radiation and the other for larger particles. Validity of these phase functions was esta blished by comparing their predictions against Mie phase functions. In this paper we examine the validity of these phase functions for monodisperse al igned nonspherical particles. The nonspherical particles employed for exami ning approximate phase functions are spheroids and infinitely long cylinder s, Results show that the predictions of our approximate phase functions are equally valid for nonspherical particles too, (C) 1999 Published by Elsevi er Science Ltd. All rights reserved.