Dear Meep users For my calculations I'd like to understand at least more or less how the simulations work. In http://math.mit.edu/~stevenj/papers/OskooiRo10.pdf<http://math.mit.edu/%7Estevenj/papers/OskooiRo10.pdf> they say that in order to timestep the value of Dy at (2l, m+1, 2n), the Hz points at (2l ± 1, 2m +1, 2n) must be known.
In my opinion, starting from Maxwell's equations, d(Dy)/dt= d(Hx)/dz - d(Hz)/dx, also Hx at (2l, 2m+1, 2n ± 1) should be known for time-stepping (at least in three dimensions) . So let's consider timestepping in two dimensions. If we do not know Hx at (2l, 2m+1, 2n ± 1), probably d(Hx)/dz is set 0. This means that in z direction which is not explicitly calculated, the (x,y,z=0)-slide is repeated at every "imaginary" z coordinate z≠0 which makes the point source an infinite wire. Please correct me if I'm wrong. But if what I said is right, what does the simulation in one dimension? I just can't find an answer to this question. Thanks in advance J. Zellmer
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