On Tue, 13 Jun 2006, hbchen8888 wrote:
Thank you very much for you help.But I still have some questions:
What means "CW"?
Continuous-wave. i.e. constant frequency (see the continuous-src in Meep.)
I do not know where to compute the flux spectra? Is
it in the dielectric near the boundry of dielectric-air?
In principle, it doesn't matter, but in practice because of the
discretization in FDTD methods I find that it is often more accurate to
compute flux through a plane in a homogeneous medium and far from the
source. So, I would suggest computing the flux through planes above and
below the slab, close to the boundary of the computational cell (but not
inside the PML absorbing boundary layers).
How to define a
bunch of random current sources? Is it a Gaussian-pulse?
No, it is a bunch of sources with random amplitudes/phases and directions.
i.e. you will write a little loop to make a list of source objects.
In APL. 87.203508, there is a absorption coefficient. How to
embodiment it in meep?
See the section on dispersive materials in the manual, which allows you to
add absorption (i.e. an imaginary part of the dielectric constant).
Steven
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