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#!/usr/bin/env python3
"""
Flattened depth-probe simulation:
Intensity as function of incident angle alpha_i for a few depths z.
"""
import bornagain as ba
from bornagain import ba_plot as bp, deg, nm
def get_sample(depth):
material_vac = ba.RefractiveMaterial("Vacuum", 0, 0)
material_A = ba.RefractiveMaterial("A", 5e-5, 0)
material_sub = ba.RefractiveMaterial("Substrate", 3e-05, 0)
sample = ba.Sample()
sample.addLayer(ba.Layer(material_vac))
sample.addLayer(ba.Layer(material_A, depth))
sample.addLayer(ba.Layer(material_sub))
return sample
def simulate(depth):
sample = get_sample(depth)
n = 20
alpha_max = 0.8 * deg
scan = ba.AlphaScan(n, alpha_max / n, alpha_max)
scan.setWavelength(0.3*nm)
z_axis = ba.ListScan("z (nm)", [-depth])
simulation = ba.DepthprobeSimulation(scan, sample, z_axis, 0)
result = simulation.simulate().flat()
result.setTitle(f'{depth} nm')
return result
if __name__ == '__main__':
depths = [20, 40, 60]
results = [simulate(d) for d in depths]
from bornagain import ba_check
ba_check.persistence_test(result)
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