Dear meep users,
According to the docs(
https://meep.readthedocs.io/en/latest/Python_Tutorials/Basics/ ),
Q is the number of periods to decay energy by exp(-2π).
The length of period of exp( -i(2 * π * c * α)t + 2 * π * c * β * t) is 1 /
(c*α).
So, after Q = - α /(2 * β) periods later,
{ 1 / (c * α )} * Q
= - 1 / (2 * c * β)
time passed and the decay rate should be
exp( 2 * π * c * β * Q )
= exp( - π)
However, according to the docs,
decay rate is exp( - 2 * π).
Why?
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