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;; From the Meep tutorial: plotting Faraday rotation of a linearly polarized plane wave
;; Parameters for a gyrotropic Lorentzian medium
(define-param epsn 1.5) ; background permittivity
(define-param f0 1.0) ; natural frequency
(define-param g0 1e-6) ; damping rate
(define-param sn 0.1) ; sigma parameter
(define-param b0 0.15) ; magnitude of bias vector
(set! default-material
(make dielectric
(epsilon epsn)
(E-susceptibilities
(make gyrotropic-lorentzian-susceptibility
(frequency f0)
(sigma sn)
(gamma g0)
(bias (vector3 0 0 b0))))))
;; Set up and run the Meep simulation:
(define-param tmax 100)
(define-param L 20.0)
(define-param fsrc 0.8)
(define-param src-z -8.5)
(set-param! resolution 50)
(set! geometry-lattice (make lattice (size 0 0 L)))
(set! pml-layers (list (make pml (thickness 1.0) (direction Z))))
(set! sources (list
(make source
(src (make continuous-src (frequency fsrc)))
(component Ex)
(center (vector3 0 0 src-z)))))
(run-until tmax
(to-appended "efields"
(at-end output-efield-x)
(at-end output-efield-y)))
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