Dear Prof Johnson
Thanks for your reply. As per your suggestion i changed my source to
Gaussian-src. But i am not getting the result i need.
I want to incident picosecond ultrashort pulses from above the slab on to
its surface normally (in the Z-direction) to have third order nonlinearity.
For that i am using get-field-point to calculate the intensity.
When i am using continuous source the intensity is different at different
time.
When i am using Gaussian source (Ex polarization) the intensity is zero at
each time unit.When i change the polarization of the Gaussian source to Hy
the i am getting nonzero intensity. But the values i am getting is
different at different time which leads to different average intensity at
different time periods.
Here i send the part of my ctl-file containing the source information.
(define-param fcen 1.282 ) ; pulse center frequency
(set! sources
(list
(make source
(src (make gaussian-src (frequency fcen) (width
1e-12)))
(component Hy)
(center 0 0 (- (* 0.5 sz) dpml))
(size (* 0.8 sx) (* 0.8 sy) 0)
(amplitude amp)) ))
(define (my-print-pointsx)
(print "pointsx:, " (meep-time) ", "
(get-field-point Sx (vector3 0 0 0)) "\n"))
(run-until 400 my-print-pointsx)
*Can u please send a sample ctl file on "how to introduce third-order
nonlinearity by incidenting ultrashort pulse laser from above the slab on
to its xy-surface normally (in Z-direction)" or can u give any hint
regarding that. It will very usefull to me. Please help me in this regards.*
Regards
Pankaj Kumar Sahoo
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