Dear Steven and meep users.
While using Meep, I wanted to calculate time-averaging power.
So, I firstly made time-sum poynting vectors like that:
-------------------------------------------------------------------------------------
(define sxt 0)
(define syt 0)
(define (sumsf)
(set! sxt (+ sxt Sx))
(set! syt (+ syt Sy))
)
-------------------------------------------------------------------------------------
Secondly, I added "sumsf" function in "run-until" routine like that:
-------------------------------------------------------------------------------------
(run-until (* 30 mTp)
(at-beginning output-epsilon)
(after-time (* 29 mTp)
synchronized-magnetic sumsf
)
)
-------------------------------------------------------------------------------------
The mTp in the above script represents 1 time period in meep.
I think that "sumsf" function works well. The problem is that I cannot save
variables 'sxt' and 'syt' into files at end. I tried to save them by using
'output-field-function' like that:
-------------------------------------------------------------------------------------
(define (f st) (* 1 st))
(run-until (* 30 mTp)
(at-beginning output-epsilon)
(after-time (* 29 mTp)
synchronized-magnetic sumsf
)
(at-end
(output-field-function "sxt" (list sxt) f)
(output-field-function "syt" (list syt) f)
)
)
-------------------------------------------------------------------------------------
However, it doesn't work.
I'll appreciate you if you answer my question.
Thank you for your attention.
Sincerely,
Seyoon Kim.
________________________________________________________
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