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#!/usr/bin/env python3
# /// script
# requires-python = ">=3.10"
# dependencies = ["bornagain>=25,<26"]
# ///
"""
Flattened depth-probe simulation:
Intensity as function of incident angle alpha_i for a few depths z.
"""
import bornagain as ba
ba.require_versions("bornagain>=25,<26")
from bornagain import deg, nm
def get_sample(depth):
vac_mat = ba.Vacuum()
a_color = (0.05, 0.62, 0.55)
a_mat = ba.RefractiveMaterial("A", a_color, 5e-5, 0)
sub_color = (0.28, 0.57, 0.82)
sub_mat = ba.RefractiveMaterial("Substrate", sub_color, 3e-05, 0)
sample = ba.Sample()
sample.addLayer(ba.Layer(vac_mat))
sample.addLayer(ba.Layer(a_mat, depth))
sample.addLayer(ba.Layer(sub_mat))
return sample
def simulate(depth):
sample = get_sample(depth)
n = 500
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]
ba.showSample3D(get_sample(depths[0]), sample_size=120*nm, seed=0)
ba.plot_multicurve(results, legendloc='lower right')
ba.plt.show()
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