GroupTheory`
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GTPhPermittivity[reciprocal basis,cutoff,objects,background]
gives 
for all reciprocal lattice vectors used in the master equation with 
.
Details and Options
- Two methods of the construction of the master equation, i.e. the eigenvalue problem to construct photonic band structures are possible. First, the
are calculated on the fly during the construction of the eigenvalue problem, second all 
which are necessary are calculated beforehand. GTPhPermittivity calculates all the necessary 
beforehand. - The following options can be given:
-
GOPixel True Decides the type of calculation: pixelmap or list of objects GOVerbose False Controls the output of additional information - See: W. Hergert, M. Geilhufe, Group Theory in Solid State Physics and Photonics. Problem Solving with Mathematica, chapter 10.4
Examples
The Fourier transforms for all substantially different differences of two reciprocal lattice vectors G - G’ are calculated.