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"Independent" and "Dependent" Scattering by Particles in a Multi-Particle GroupThe terms "independent" and "dependent" scattering are ubiquitous in the phenomenological discipline of light scattering by particulate media. Yet there is a wide range of ad hoc definitions of these terms, many of which are vague and conceptually inconsequential. In this paper we perform a first-principles analysis of these terms based on the rigorous volume-integral-equation formulation of electromagnetic scattering. We argue that scattering by a multi-particle group can be called independent if certain optical observables for the entire group can be expressed in appropriate single-particle observables. Otherwise one deals with the dependent scattering regime. The prime (and perhaps the only) examples of independent scattering are scattering scenarios described by the first-order scattering approximation and the first-principles radiative transfer theory.
Document ID
20180007035
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Mishchenko, Michael I.
(NASA Goddard Inst. for Space Studies New York, NY, United States)
Date Acquired
October 29, 2018
Publication Date
September 12, 2018
Publication Information
Publication: OSA Continuum
Publisher: Optical Society of America
Volume: 1
Issue: 1
Subject Category
Physics Of Elementary Particles And Fields
Report/Patent Number
GSFC-E-DAA-TN61478
Distribution Limits
Public
Copyright
Use by or on behalf of the US Gov. Permitted.
Keywords
Particle scattering
Electromagnetic scattering
Elastic scattering
In field scattering
Multiple scattering
Light scattering
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