I am trying to mimic PL measurement using FDTD simulations. I am using the bunch of dipole sources as the emitters. It would be really helpful if you can suggest me to calculate the PL intensity using DFT monitor.
Thank you for posting your question. Typically, you can use far field projection from a DFT monitor to get the emission pattern that would be measured. I don't think you necessarily need to use a dipole cloud, 1 dipole could be enough. Note if the PL is isotropic, you need 3 simulations (1 for each dipole orientation) and average the far field intensities (abs(E)^2) to get the correct emission. A similar methodology is used for OLED simulations.
I hope this will help.
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