Sphere: Coupling vs polarization filter

Importing the package dependencies: numpy, PyMieSim

import numpy as np

from PyMieSim.experiment.detector import CoherentMode
from PyMieSim.experiment.scatterer import Sphere
from PyMieSim.experiment.source import Gaussian
from PyMieSim.experiment import Setup

from PyMieSim import measure
from PyOptik import UsualMaterial

Defining the source to be employed.

source = Gaussian(
    wavelength=950e-9,
    polarization_value=0,
    polarization_type='linear',
    optical_power=1e-3,
    NA=0.2
)

Defining the ranging parameters for the scatterer distribution

scatterer = Sphere(
    diameter=np.linspace(100e-9, 2000e-9, 20),
    material=UsualMaterial.BK7,
    medium_index=1,
    source=source
)

Defining the detector to be employed.

detector = CoherentMode(
    mode_number="HG11:00",
    NA=[0.1],
    phi_offset=-180,
    gamma_offset=0,
    polarization_filter=np.linspace(-180, 180, 100),
    sampling=300,
    rotation=0,  # Rotation of the mode field
)

Defining the experiment setup

experiment = Setup(
    scatterer=scatterer,
    source=source,
    detector=detector
)

Measuring the properties

data = experiment.get(measure.coupling)

Plotting the results

figure = data.plot(
    x=experiment.polarization_filter,
    std=experiment.diameter
)

_ = figure.show()