Dear Meep users: The ring_cyl.ctl example shows how to use cylindrical symmetry to reduce a 2D problem into a 1D one. The source is a Ez diople. However, if I changed it to Ex (actually Er in the cylindrical coord.), MEEP will give me an error:
meep: Invalid fields::loop_in_chunks grid type ex for dimensions Cylindrical Same thing to the Ey (or E_phi) source. What is wrong? Thank you for your help! Puck
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