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The scattering of light by spherical particles has been studied for over 160 years, and the
mathematical descriptions of various forms of scattering makes approximations unique to
the specific situation. A coherent description and understanding of light scattering,
especially by irregularly shaped particles, requires a different approach. This is not purely
an academic concern, most aerosol mass in the atmosphere, including that of entrained
mineral dust, volcanic ash, and soot consists of particles with irregular shapes and the way
they scatter and absorb light has implications for many climate models. Such an approach
considers the scattering in reciprocal or Q-space. Q-space analysis has been around for
many years and is heavily used in the fields of small angle x-ray and neutron scattering but
developments into scattering in general are relatively recent. Q-space analysis provides a
simple and comprehensive description of scattering that can compare the similarities and differences of the scattering by different types of particles. It also leads to physical
interpretation of the scattering mechanisms and critically it yields additional information
and descriptions that may not be readily found through other analyses.
This book provides an introduction to the Q-space analysis of light scattering for
researchers in physics and related applied sciences. Unlike previous treatises, this study of
electromagnetic light scattering does not start with Maxwell’s equations. Instead, use is
made of known electromagnet formulations, like the Mie equations, to present an
empirical study of scattering. It applies to scattering from dielectric spheres of arbitrary
size and refractive index, fractal aggregates and irregularly shaped particles such as dusts.
Key Features:
Accessible introduction to a coherent mathematical description of scattering
Emphasis on interpretation and applications
Written by a leading researcher in the field
Self-contained, includes relevant background physics and maths
