.. _phase-rayleigh_polarized:

Rayleigh phase function (:monosp:`rayleigh_polarized`)
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.. pluginparameters::

 * - depolarization
   - |float|
   - Depolarization factor, the ratio of intensities parallel and perpendicular
     to the plane of scattering for light scattered at 90 deg.


Scattering by particles that are much smaller than the wavelength
of light (e.g. individual molecules in the atmosphere) is well-approximated
by the Rayleigh phase function.