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Scattering by two-component random distributions of spheres
J E Burke1, T H Kays, J L Kulp
1Sylvania Electronic Systems,Western Division, Mountain View, California 94040, USA.
Applied Optics
|January 14, 2010
Summary
Partial coherence scattering data for two-component mixtures of spheres were analyzed. Findings reveal how fractional volume impacts scattering, aiding optical diagnostic applications.
Area of Science:
- Optical Physics
- Scattering Theory
- Fluid Dynamics
Background:
- Partial coherence scattering is crucial for optical diagnostics.
- Understanding multi-component systems requires detailed scattering analysis.
- Previous studies often focused on monodisperse scatterers.
Purpose of the Study:
- To present partial coherence scattering data for two-component mixtures.
- To investigate the influence of fractional volume on scattering properties.
- To provide data for optical applications in diagnostic measurements.
Main Methods:
- Developed a prototype for partial coherence scattering measurements at lambda = 5 mm.
- Used equal volume mixtures of two sizes of randomly distributed, moving Styrofoam spheres.
- Processed scattered field data in real-time using an electronic analog computer.
Main Results:
- Presented data for forward scattered coherent phase, intensities (coherent, incoherent, total), and covariant magnitude and phase.
- Quantified variances and covariance of instantaneous phase quadrature components.
- Analyzed reduced data to show scattering dependence on fractional volume.
Conclusions:
- The study provides comprehensive scattering data for binary sphere mixtures.
- Results facilitate comparison with existing data for identical spheres.
- The findings support the use of partial coherence scattering for diagnostic applications.
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