Dear Steven,
When we calculate the reflection and transmission spectra by
Meep, we define a reflection or transmission plane.
I have tried the reflection spectra at one point.
When the point is far from the photonic crystal slab (e.g. the
distance is 4, the slab thickness is 0.5), the reflection spectra at a
point is the same as the reflection spectra at a plane.
However, when the point is near the photonic crystal slab (e.g.
the distance is 0.5), the reflection spectra are not same. And the
reflection spectra at a point is larger than 1 at some wavelengths.
Perhaps the larger reflection at a point is due to surface
effect? How can you cancel this by using a plane? What is the advantage of a
plane?
Thank you very much!
Yours Sincerely,
Lina
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