SPF Computation

This example demonstrates the computation and visualization of the Scattering Phase Function (SPF) using PyMieSim.

Importing the package: PyMieSim

from PyMieSim.single.scatterer import Sphere
from PyMieSim.single.source import Gaussian

Defining the source

source = Gaussian(
    wavelength=1000e-9,  # 1000 nm
    polarization_value=0,  # Linear polarization angle in radians
    polarization_type='linear',
    optical_power=1,  # Arbitrary units
    NA=0.3  # Numerical Aperture
)

Defining the scatterer

scatterer = Sphere(
    diameter=1.2e-6,  # 1200 nm
    source=source,
    index=1.4,  # Refractive index of the scatterer
    medium_index=1.0,  # Refractive index of the surrounding medium
)

Computing the data

data = scatterer.get_spf(sampling=300)  # Specify the number of sampling points

Plotting the data

figure = data.plot()

Display the plot

_ = figure.show()