MPB users,
I am modeling a photonic crystal slab structure (air in dielectric) with n= 2.4
for the dielectric. I want to seal the top and bottom of the slab with a glass
cladding layer n=1.46. In my simulation, I have the cladding layers the same
thickness of the dielectric slab (0.9 a). This 'sandwich' structure is
surrounded by air.
I am wondering what expression to use for the light cone when I plot the band
structure. My intuition tells me the glass layer would still do the index
guiding in -z, even though it is smaller in thickness than the surrounding air
and the light cone would be ck/n(glass). Or is it the air that does the
guiding or is there some "effective" light cone expression? This is really
more of a physics question I suppose than advice on MPB. Any thoughts?
Thanks
Randy Tompkins
Graduate Research Assistant
West Virginia University
Physics Dept.
Phone: (304)293-3422 x1436
Home: (304)-906-9821
Fax: (304)-293-5732
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