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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 depth z for a few incident angles alpha_i.
"""
import bornagain as ba
ba.require_versions("bornagain>=25,<26")
from bornagain import deg, nm
def get_sample():
vac_mat = ba.Vacuum()
a_color = (0.05, 0.62, 0.55)
a_mat = ba.RefractiveMaterial("A", a_color, 6e-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, 100*nm))
sample.addLayer(ba.Layer(sub_mat))
return sample
def simulate(sample, alpha_i_deg):
alpha = alpha_i_deg * deg
scan = ba.AlphaScan(1, alpha, alpha)
scan.setWavelength(0.3*nm)
z_axis = ba.EquiDivision("z (nm)", 500, -130*nm, 30*nm)
simulation = ba.DepthprobeSimulation(scan, sample, z_axis, 0)
result = simulation.simulate().flat()
result.setTitle(f'{alpha_i_deg} deg')
return result
if __name__ == '__main__':
sample = get_sample()
angles = [0.4, 0.5, 0.6, 0.65, 0.7]
results = [simulate(sample, ai) for ai in angles]
ba.showSample3D(sample, sample_size=180*nm, seed=0)
ba.plot_multicurve(results, legendloc='lower right')
ba.plt.show()
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