Dear meep users, Few days before, i raised a question on the meep
group regarding the nearfield enhancement calculation. I received only one
reply but was very confusing. I already calculated the nearfield enhancement at
a single wavelength but i want to calculate it with a broadband wavelength. For
a single wavelength, i wrote the following lines of code and using a continuous
source.
(in-volume (volume (center 0 0 0) (size sx sy sz)) (to-appended "Ex" (at-end
output-efield-x)))(in-volume (volume (center 0 0 0) (size sx sy sz))
(to-appended "Ey" (at-end output-efield-y)))(in-volume (volume (center 0 0 0)
(size sx sy sz)) (to-appended "Ez" (at-end output-efield-z)))
Now my question here is that, if i use a broadband pulse instead of a
continuous source than shall i use the same code as mentioned above. I mean, i
will just change the source from continuous to gaussian and set its wavelength
and width and rest of the code will be same. M i rigth? If no then what should
i do for the broadband pulse?
Thanks,
Best Regards,Aaron
From: [email protected]
To: [email protected]
Date: Mon, 21 Mar 2011 11:01:01 +0100
Subject: [Meep-discuss] Problem with the Near Field Enhancement
Dear MEEP users, I am trying to calculate the near field
enhancement of a gold nanosphere. At the moment i only calculated the
enhancement at a fixed wavelength using a continuous source. Now i want to
calculate the enhancement at a broadband wavelength. I don't know about the
next steps after hitting a sphere with a broadband pulse. How should i know
that which value of the enhancement corresponds to which wavelength?I also read
on the group that i should take a 4D Fourier transform. Can somebody tell me
how should i perform a 4D Fourier transform?
Thanks in advance.
BR,Aaron
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