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parameter change and minor modifications

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This commit is contained in:
Edoardo Vergerio
2026-08-23 18:17:16 +02:00
parent 0b9dfffe89
commit 7380eabf54
5 changed files with 37 additions and 19 deletions
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metaprop_fibermode_doublet_sym.py
+4 -4
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@@ -73,9 +73,9 @@ rho = np.sqrt(X**2 + Y**2)
sampling_period = xs[1] - xs[0]
d0 = 535e-6 #propagation distance: source - MS1 [m]
d0 = 353e-6 #propagation distance: source - MS1 [m]
d_source = d0 - lda0 / 2 #propagation distance: source - MS1 used for FDTD simulations [m]
d1 = 415e-6 #propagation distance: MS1 - MS2 [m]
d1 = 218e-6 #propagation distance: MS1 - MS2 [m]
d2 = d0 #propagation distance: MS2 - target [m]
phase_min = 0
@@ -539,8 +539,8 @@ def forward_propagate() -> None:
intermediate_fields[1] = np.fft.fftshift(ifft_operator.output_array.copy())
end_time = time.time()
#make_2Dplot_of(intermediate_fields[0], choose_quantity="amplitude", save_name="intermediate_field_1_amplitude", plot_zoom_x=full_view_x, plot_zoom_y=full_view_y)
#make_2Dplot_of(intermediate_fields[1], choose_quantity="amplitude", save_name="intermediate_field_2_amplitude", plot_zoom_x=full_view_x, plot_zoom_y=full_view_y)
make_2Dplot_of(intermediate_fields[0], choose_quantity="amplitude", save_name="intermediate_field_1_amplitude", plot_zoom_x=zoom_output_fiber_radius, plot_zoom_y=zoom_output_fiber_radius)
make_2Dplot_of(intermediate_fields[1], choose_quantity="amplitude", save_name="intermediate_field_2_amplitude", plot_zoom_x=zoom_output_fiber_radius, plot_zoom_y=zoom_output_fiber_radius)
print("Propagation finished in {:.6f} seconds.".format(end_time - start_time))
metasurface/full_meta_meep.ipynb
+23 -6
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metasurface/meep_fullmeta_propagation.py
+1 -1
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@@ -230,7 +230,7 @@ ys_far = np.linspace(-ff_plane_size/2, ff_plane_size/2, ff_resolution * ff_plane
X_far, Y_far = np.meshgrid(xs_far, ys_far)
projection_distance = h + d1 - lda0 / 2
projection_distance = d1 - np.abs(source_position.z)
near_region_monitor = mp.Near2FarRegion(
center=mp.Vector3(0, 0, 0),
unit_cell/unit_cell_param_sweep_lineplot.pdf
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unit_cell/unit_cell_plots.py
+9 -8
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@@ -2,15 +2,16 @@ import numpy as np
import matplotlib.pyplot as plt
#import the parameter sweep arrays for the central wavelength
diameters = np.load("unit_cell_center_1550_h900nm_res50_wvl_diameters.npy")
mode_wvl = np.load("unit_cell_center_1550_h900nm_res50_wvl_mode_wvl.npy")
mode_tran_arr = np.load("unit_cell_center_1550_h900nm_res50_wvl_mode_tran.npy")
diameters = np.load("unit_cell/unit_cell_center_1550_h900nm_res50_wvl_diameters.npy")
print(diameters)
mode_wvl = np.load("unit_cell/unit_cell_center_1550_h900nm_res50_wvl_mode_wvl.npy")
mode_tran_arr = np.load("unit_cell/unit_cell_center_1550_h900nm_res50_wvl_mode_tran.npy")
print(mode_tran_arr)
mode_phase_arr = np.load("unit_cell_center_1550_h900nm_res50_wvl_mode_phase.npy")
mode_phase_arr = np.load("unit_cell/unit_cell_center_1550_h900nm_res50_wvl_mode_phase.npy")
print(mode_wvl)
unwrap_mode_phase_arr = np.abs(np.unwrap(mode_phase_arr - mode_phase_arr[0], period=2*np.pi))
#import the reference value array
ref_results = np.loadtxt("results_S21_p700nm_h900nm.txt", skiprows=5,dtype=complex)
ref_results = np.loadtxt("unit_cell/results_S21_p700nm_h900nm.txt", skiprows=5,dtype=complex)
R_ref = np.real(ref_results[:,1])
S21_ref = ref_results[:,3]
S21_ref_mag = np.abs(S21_ref)
@@ -22,7 +23,7 @@ plt.figure()
plt.subplot(1,2,1)
plt.plot(1e3*diameters/2,mode_tran_arr, '^r-.', label='FDTD')
plt.plot(R_ref,S21_ref_mag, '*k--',label='FEM')
plt.xlabel("Pillar Radius (um)")
plt.xlabel("Pillar Radius (nm)")
plt.xticks([t for t in np.linspace(1e3*diameters[0]/2, 1e3*diameters[-1]/2, 5)])
plt.gca().set_xticklabels([f"{t:.0f}" for t in np.linspace(1e3*diameters[0]/2, 1e3*diameters[-1]/2, 5)])
plt.ylabel("Transmission")
@@ -31,11 +32,11 @@ plt.legend()
plt.subplot(1,2,2)
plt.plot(1e3*diameters/2,unwrap_mode_phase_arr, '^r-.', label='FDTD')
plt.plot(R_ref,S21_ref_phase, '*k--', label='FEM')
plt.xlabel("Pillar Radius (um)")
plt.xlabel("Pillar Radius (nm)")
plt.xticks([t for t in np.linspace(1e3*diameters[0]/2, 1e3*diameters[-1]/2, 5)])
plt.gca().set_xticklabels([f"{t:.0f}" for t in np.linspace(1e3*diameters[0]/2, 1e3*diameters[-1]/2, 5)])
plt.ylabel("Phase (rad)")
plt.legend()
plt.subplots_adjust(wspace=0.5)
plt.savefig("unit_cell_param_sweep_lineplot.pdf")
plt.savefig("unit_cell/unit_cell_param_sweep_lineplot.pdf")