I constructed a photodetector in the Semiconductor module, and then performed a parametric sweep with two parameters, the incident photon flux and bias voltage. For the incident photon flux, only two values were swept, 0 and a non zero value. The aim is to get I-V curves with and without light illumination. Then I got the two I-V curves at two incident photon flux as shown in the appended figure.
Now, I'd like to calculate the difference between the two curves to get net photon current. I tried a lot but didn't manage. The question is how to calculate Jx (current density) minus itself at two incident photon flux parameter values within the results of a parametric sweep.
I'll appreciate all help!