NanoComp / meep

free finite-difference time-domain (FDTD) software for electromagnetic simulations
GNU General Public License v2.0
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tutorial for off-axis planewaves in cylindrical coordinates #2630

Closed stevengj closed 4 months ago

stevengj commented 10 months ago

Following up on #2108, it would be good to have a cylindrical test case that shows how to make an oblique planewave in cylindrical coordinates using a Jacobi–Anger expansion, as found in equations 5–7 of this paper, for example.

A simple problem would be Mie scattering from a sphere, which we already have a tutorial on. This is nice because if you look at the scattering cross section at an oblique angle it should match that from normal incidence, so it's easy to validate.

cc @mochen4