Single Module#

The single package focuses on scattering from a single particle. It exposes simple classes for defining a source, a scatterer and a detector so that the interaction can be studied in detail.

Key components#

Sources - plane waves and Gaussian beams.
Scatterers - spheres, cylinders and core–shell particles.
Detectors - photodiodes as well as coherent and incoherent detectors.

Example#

This example computes the power coupled into a photodiode from a tiny sphere.

from PyMieSim.single.scatterer import Sphere
from PyMieSim.single.source import Gaussian
from PyMieSim.single.detector import Photodiode
from PyMieSim.units import nanometer, degree, watt, AU, RIU

source = Gaussian(
    wavelength=450 * nanometer,
    polarization=0 * degree,
    optical_power=1 * watt,
    NA=0.3 * AU,
)

scatterer = Sphere(
    diameter=6 * nanometer,
    source=source,
    medium_property=1.0 * RIU,
    property=1.4 * RIU,
)

detector = Photodiode(
    NA=0.1 * AU,
    phi_offset=0 * degree,
    gamma_offset=0 * degree,
    sampling=200 * AU,
    polarization_filter=None,
)

coupling = detector.coupling(scatterer)
print(coupling)