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
ther above threshold, as you are doing, and then linearly
interpolate based on the observed intensities back to where the first lasing
threshold should be.
On Mon, Jul 8, 2019 at 6:21 PM 裴延波 wrote:
Yes. The problem of using the above parameters is that no lasing takes place
after 1000 000 M
ate, which are then slowly pumped to the
upper energy state.
On Sat, Jul 6, 2019 at 10:59 AM 裴延波 wrote:
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. Fo
Dear Meep users and developers
I have a question concerning the interface of Medium transform(M [ Matrix class
]). In my present work, I need to model the anisotropic dielectric constant of
liquid crystals. Now, I calculate epsilon_diag=(a,b,c) and
epsilon_offdiag=(u,v,w) for the particular
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,
I am trying to use dispersive complex epsilon to describe gain in my
calculation. The parameters for the epsilon is defined as follows.
freq_32 = 2# emission frequency (units of 2\pi c/a)
gamma_32 = 0.306# FWHM emission linewidth in sec^-1 (units of 2\pi c/a)
sigma_32 = 1e-4
ields from continuing their exponential growth.
On Sat, Jul 25, 2020 at 2:02 PM 裴延波 wrote:
I am trying to use dispersive complex epsilon to describe gain in my
calculation. The parameters for the epsilon is defined as follows.
freq_32 = 2# emission frequency (units of 2\pi c/a)
gamma_
ion, which prohibits the fields from growing exponentially forever.
However, as the Lorentzian susceptibility model does not contain this physics,
nothing prohibits the fields from continuing their exponential growth.
On Sat, Jul 25, 2020 at 2:02 PM 裴延波 wrote:
I am trying to use dispersive compl
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