Periodic boundary conditions

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Implement possibility to simulate 1D and 2D-periodic scatterers as is done
in DDSCAT 7.0. It seems relatively easy, however a particular way to do it
should be chosen from several ideas found in the literature.

It is also not clear whether it can work with any Green's tensor (e.g. with
FCD) or not. Moreover, computational time can become an issue, then
optimization will be required.

Original issue reported on code.google.com by yurkin on 7 Sep 2009 at 7:01

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The "lattice sums" discussed here
http://www.wave-scattering.com/dlsum1in2.html
may be relevant for an efficient evaluation of the periodic Green's tensor

Original comment by yurkin on 18 Sep 2009 at 9:22

• Added labels: Component-Logic

[myurkin]

Also, a lot of technical details for calculation of periodic Green's tensor (both free-space and reflected one) can be found in Chaumet P.C., Rahmani A., and Bryant G.W. Generalization of the coupled dipole method to periodic structures, Phys. Rev. B 67, 165404 (2003).