Hello! everyone, First, I am not very sure of the specific way to generate E-field in MEEP. In FDTD method, the E-field is converted to sqrt(epsilon_0/mu_0) where epsilon_0 = 8.85e-12, mu_0 = 1.2566e-6. I wonder how to transfer the result of E-field to the SI value (V/m).
Second, in this link http://www.mail-archive.com/[email protected]/msg00386.html Steven said that we need to calculate the 'amplitude' by the following step: >Suppose you want to input 5W of power into a waveguide (or whatever). What you should do is to put >a source with some amplitude "A" and measure the power P that you get in >your waveguide (using one of Meep's flux functions). Then to make the power >5, you should scale A by sqrt(5/P). I wonder how I can deal with it under C++ interface? Best Regards! --
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