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import meep as mp
def main():
c = mp.Cylinder(radius=3, material=mp.Medium(index=3.5))
e = mp.Ellipsoid(size=mp.Vector3(1, 2, mp.inf))
src_cmpt = mp.Hz
sources = mp.Source(
src=mp.GaussianSource(1, fwidth=0.1), component=src_cmpt, center=mp.Vector3()
)
if src_cmpt == mp.Ez:
symmetries = [mp.Mirror(mp.X), mp.Mirror(mp.Y)]
if src_cmpt == mp.Hz:
symmetries = [mp.Mirror(mp.X, -1), mp.Mirror(mp.Y, -1)]
sim = mp.Simulation(
cell_size=mp.Vector3(10, 10),
geometry=[c, e],
boundary_layers=[mp.PML(1.0)],
sources=[sources],
symmetries=symmetries,
resolution=100,
)
def print_stuff(sim_obj):
v = mp.Vector3(4.13, 3.75, 0)
p = sim.get_field_point(src_cmpt, v)
print(f"t, Ez: {sim.round_time()} {p.real}+{p.imag}i")
sim.run(
mp.at_beginning(mp.output_epsilon),
mp.at_every(0.25, print_stuff),
mp.at_end(print_stuff),
mp.at_end(mp.output_efield_z),
until=23,
)
print(f"stopped at meep time = {sim.round_time()}")
if __name__ == "__main__":
main()
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