Dear MEEP authors and users,
Greetings. Is it possible to calculate the instantaneous absorbed power density distribution in a lossy material in MEEP? For example, for a dispersive material under a pulse excitation, can MEEP calculate the absorbed power density distribution during the time iteration (rather than using the Fourier-transformed fields in the postprocessing step)? I realize that MEEP can calculate the absorbed power density distribution (space-dependent) corresponding to each frequency component of a pulse. This is explained in the tutorial "absorbed power density map of a lossy cylinder." However, the problem I have on hand requires the space-time-dependent absorbed power density since the instantaneous absorption is expected to change the material properties, which will then affect the propagation of electromagnetic fields (i.e., it is nonlinear, and using Fourier transform after the simulation is not correct for this problem). If I could get the instantaneous absorption, I can add the feedback mechanism in the MEEP code. I would appreciate your response and comments! Best, Liang
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