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app:mie [2018/09/25 09:05] pklapetek created |
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| - | Mie scattering | + | ===== Mie scattering ===== |
| - | under construction | + | Scattering of monochromatic light by a homogeneous dielectric sphere is a traditional problem in the area of light-matter interaction. It has numerous applications, e.g. in aerosols measurements in environmental studies. |
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| + | Calculation on a regular, smooth and homogeneous, sphere can be done using Mie's solution of Maxwell equations and there are numerous codes available for this, even [[https://omlc.org/calc/mie_calc.html|online]]. However, we can use it to benchmark the performance of the near-field to far-field transform. | ||
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| + | The figures below illustrate a good match between GSvit and Mie's solution calculated using the [[https://github.com/dronir/MieScatter.jl|MieScatter]] package for Julia. | ||
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| + | Nominal particle radius: 400 nm, wavelength: 633 nm, refraction index of the sphere material: 2.0. | ||
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| + | Incident light polarized parallel to the scattering plane (scattered light therefore also polarized parallel): | ||
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| + | {{:app:mie_parallel.png?400|Parallel}} | ||
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| + | Incident light polarized perpendicular to the scattering plane (scattered light therefore also polarized perpendicular): | ||
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| + | {{:app:mie_perpendicular.png?400|Perpendicular}} | ||
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| + | ---- | ||
| + | // | ||
| + | {{ :app:mie_scattering.png?80|}} | ||
| + | Sample parameter file: {{app:mie_scattering.tar.gz|mie scattering}}. | ||
| + | \\ | ||
| + | Perpendicularly polarized plane wave scattering on a dielectric sphere. | ||
| + | // | ||
| + | ---- | ||
app/mie.1537859114.txt.gz · Last modified: 2018/09/25 09:05 by pklapetek
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