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from __future__ import division
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("t, Ez: {} {}+{}i".format(sim.round_time(), p.real, p.imag))
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("stopped at meep time = {}".format(sim.round_time()))
if __name__ == '__main__':
main()
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