Notes Dependence of extinction cross-section on incident polarization state and...

The core information for this publication's citation.: 
Yang, P., M. Wendisch, L. Bi, G. W. Kattawar, M. Mishchenko, and Y. Hu (2011), Notes Dependence of extinction cross-section on incident polarization state and particle orientation, J. Quant. Spectrosc. Radiat. Transfer, 112, 2035-2039, doi:10.1016/j.jqsrt.2011.04.012.
Abstract: 

This note reports on the effects of the polarization state of an incident quasimonochromatic parallel beam of radiation and the orientation of a hexagonal ice particle with respect to the incident direction on the extinction process. When the incident beam is aligned with the six-fold rotational symmetry axis, the extinction is independent of the polarization state of the incident light. For other orientations, the extinction cross-section for linearly polarized light can be either larger or smaller than its counterpart for an unpolarized incident beam. Therefore, the attenuation of a quasimonochromatic radiation beam by an ice cloud depends on the polarization state of the beam if ice crystals within the cloud are not randomly oriented. Furthermore, a case study of the extinction of light by a quartz particle is also presented to illustrate the dependence of the extinction cross-section on the polarization state of the incident light.

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Research Program: 
Radiation Science Program (RSP)