plt.plot(np.fft.fft(E.real))
#%%
import fdtd
grid = fdtd.Grid(
shape=(25e-6, 15e-6, 1), # 25um x 15um x 1 (grid_spacing) --> 2D FDTD
)
print(grid)
grid[11:32, 30:84, 0] = fdtd.Object(permittivity=1.7**2, name="object")
grid[13e-6:18e-6, 5e-6:8e-6, 0] = fdtd.Object(permittivity=1.5**2)
grid[7.5e-6:8.0e-6, 11.8e-6:13.0e-6,
0] = fdtd.LineSource(period=1550e-9 / (3e8), name="source")
grid[12e-6, :, 0] = fdtd.LineDetector(name="detector")
# x boundaries
grid[0:10, :, :] = fdtd.PML(name="pml_xlow")
grid[-10:, :, :] = fdtd.PML(name="pml_xhigh")
# y boundaries
grid[:, 0:10, :] = fdtd.PML(name="pml_ylow")
grid[:, -10:, :] = fdtd.PML(name="pml_yhigh")
grid.run(total_time=10)
grid.visualize(z=0)
def pml():
pml = fdtd.PML(name="PML")
return pml
