Far-Fields Computation and Visualization

This example demonstrates the process of computing and visualizing the far-fields of a scatterer using PyMieSim.

Importing the package: PyMieSim

from PyMieSim.units import ureg
from PyMieSim.single.source import Gaussian
from PyMieSim.polarization import PolarizationState
from PyMieSim.single.scatterer import Sphere
from PyMieSim.single.setup import Setup

polarization = PolarizationState(angle=30 * ureg.degree)

source = Gaussian(
    wavelength=1000 * ureg.nanometer,
    polarization=polarization,
    optical_power=1 * ureg.watt,
    numerical_aperture=0.3,
)

scatterer = Sphere(
    diameter=1500 * ureg.nanometer,
    material=1.4,
    medium=1.0,
)

setup = Setup(
    scatterer=scatterer,
    source=source,
)

for property in ["Qext", "Qsca", "Qabs", "Qback", "g", "Cext", "Csca", "Cabs", "Cback"]:
    value = setup.get(property)
    print(f"{property}: {value}")

Qext: 4.045950200439663 dimensionless
Qsca: 4.045950200439663 dimensionless
Qabs: 0.0 dimensionless
Qback: 0.706181111517494 dimensionless
g: 0.8083293621286377 dimensionless
Cext: 7.149784177401411e-12 meter ** 2
Csca: 7.149784177401411e-12 meter ** 2
Cabs: 0.0 meter ** 2
Cback: 1.247925033026569e-12 meter ** 2