Dear Mr. Cerjan,
I will do it along this way. Thank you very much.
Yanbo
At 2019-07-09 23:38:12, "Alexander Cerjan" wrote:
1 million increments of MEEP's internal dt is not a very long time necessarily.
if i recall correctly, the tutorial example runs for 3.5 or 7 million time
1 million increments of MEEP's internal dt is not a very long time
necessarily. if i recall correctly, the tutorial example runs for 3.5 or 7
million time steps.
Near the first lasing threshold (or subsequent thresholds) it can take
quite a bit of runtime for the system to reach the steady state,
Yes. The problem of using the above parameters is that no lasing takes place
after 1000 000 MEEP's time step. At that time I wondered whether I used correct
units for those parameters and therefore I raised question about the units of
N0 and Rp.
I increased N0, Rp, or sigma and I saw the
Dear Mr. Cerjan,
Thanks for your kindly and detailed reply. I feel that I have understood
what you said.
However I am not sure I treated coupling strength sigma correctly. For
example, there are parameters for four-level gain atoms adopted from the
reference Phys. Rev. Lett. 2000, 85,
Dear Yanbo Pei,
In this essentially classical treatment of the interactions between a
saturable gain/absorbing medium and the electromagnetic fields, there are
three different variables that can all be tuned to control the effective
gain/loss that the field sees -- the two that you mentioned, N0
Dear Meep users and developers
I am using multilevel-Atomic Susceptibility of MEEP to do some simulation. I
wonder what is the unit of N0 - total number of gain atoms in the system and Rp
- pumping rate.
In the code of the tutorial documents(Multilevel_atomic Susceptibility), N0 is
equal to
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