68 lines
1.8 KiB
Python
68 lines
1.8 KiB
Python
"""
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Testing the the solver / operator mechanism with
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parameters from the 2019 Travers paper
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"""
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import matplotlib.pyplot as plt
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import numpy as np
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from scipy.interpolate import interp1d
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import scgenerator as sc
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import scgenerator.math as math
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import scgenerator.physics.units as units
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import scgenerator.plotting as plot
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import scgenerator.solver as sol
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def main():
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params = sc.Parameters(**sc.open_single_config("./tests/Travers/Travers.toml"))
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# print(params.nonlinear_operator)
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# print(params.compute("dispersion_op"))
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# print(params.linear_operator)
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# print(params.spec_0)
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# print(params.compute("gamma_op"))
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#
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# plt.plot(params.w, params.linear_operator(0).imag)
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# plt.show()
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res = sol.integrate(
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params.spec_0, params.length, params.linear_operator, params.nonlinear_operator
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)
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new_z = np.linspace(0, params.length, 256)
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specs2 = math.abs2(res.spectra)
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specs2 = units.to_WL(specs2, params.l)
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x = params.l
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# x = units.THz.inv(w)
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# new_x = np.linspace(100, 2200, 1024)
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new_x = np.linspace(100e-9, 1200e-9, 1024)
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solution = interp1d(res.z, specs2, axis=0)(new_z)
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solution = interp1d(x, solution)(new_x)
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solution = units.to_log2D(solution)
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plt.imshow(
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solution,
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origin="lower",
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aspect="auto",
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extent=plot.get_extent(1e9 * new_x, new_z * 1e2),
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vmin=-30,
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)
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plt.show()
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fields = np.fft.irfft(res.spectra)
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solution = math.abs2(fields)
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solution = interp1d(res.z, solution, axis=0)(new_z)
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solution.T[:] /= solution.max(axis=1)
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plt.imshow(
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solution,
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origin="lower",
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aspect="auto",
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extent=plot.get_extent(params.t * 1e15, new_z * 1e2),
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)
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plt.show()
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if __name__ == "__main__":
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main()
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