Dear all,

I performed a 2D flux calculation for an empty space, with Hz source in
xy-plane,  and found that the saved flux only has "ez-dft" and "hx-dft"
datasets (by using "h5ls"; what I expect would be "hz" and "ex" ). I wonder
if there is something wrong in the simulation. The key lines of the ctl
file is shown below (just like the tutorial/Transmission spectrum around a
waveguide 
bend<http://ab-initio.mit.edu/wiki/index.php/Meep_Tutorial#Transmission_spectrum_around_a_waveguide_bend>
).

Many thanks,
Klaus
--
    (set! geometry-lattice (make lattice (size sx sy no-size)))

    (set! sources (list
               (make source
                 (src (make gaussian-src (frequency fcen) (fwidth df)))
                 (component Hz) (amp-func my-amp-func)
                 (center 0 yy)
                 (size sx 0 ))))

    (set! symmetries (list      (make mirror-sym (direction X) (phase -1))))

    (if freespace? (save-flux "refl-flux" refl))
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