Multi-harmonic reconstruction of photoelastic modulator-based complete Mueller polarimeters

Recently our team published results on the reconstruction of photoelastic modulator (PEM)-based Mueller polarimeters applying the complete Q-matrix to a 9-element partial Mueller polarimeter with temporal modulation comprised by two PEM-polarizer pairs. In this investigation we extended the application of the Q-matrix to a complete 4-PEM Mueller polarimeter comparing the results with the analytical solution in the frequency domain and the complete temporal basis method. It is expected that the frequency-based analysis will allow to study signals with a broader bandwidth and the linear algebra-based methods will account for more information, otherwise ignored by the analytical solution.