Dear meep users:
I want to figure out the relationship between the power intersity I'
(units in meep) and the intensity I (units in SI).
Meep tutorial says that the units of power and electric field in meep
could be arbitrary which depend on the geometry, so I think that the unit of
electric field in meep could be V/a, "a" is the lattice constant, Is it
right? and the power intensity in meep I'=1/2*n*|E'|^2, it has unit of (V/a)^2
(note that epsilon_0=1, c=1). As we know, the electric field E in SI is V/m, so
the relationship between those is: E'=E* (a/m), is it right? so far, the
relationship between I' and I is: I=1/2* epsilon_0*c*n*|E|^2=1/2*
epsilon_0*c*n*|E'|^2* (a/m)^2=epsilon_0*c*(a/m)^2* I', and is it right ? can
anybody tell me about that? i want to obtain the real power intensity (SI)
according to the simulating results in meep software.
thaks o lot!
JiaXiang Zhang
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