POPO: Fast-modulating polarimeter with imaging capability

Open Access

Fig. 8

Observed ( $\hat{q}, \hat{u}$ $\[\hat{q}, \hat{u}\]$ ) before correction (left) and after correction (right) in comparison with values in the literature (Schmidt et al. 1992). Blue triangles, orange squares, and red circles represent raw Stokes ( ${\hat{q}}_{raw}, {\hat{u}}_{raw}$ $\[\hat{q}_{\text {raw}}, \hat{u}_{\text {raw}}\]$ ), Stokes after subtraction of artificial polarization ( ${\hat{q}}_{1}, {\hat{u}}_{1}$ $\[\hat{q}_{1}, \hat{u}_{1}\]$ ), and response-corrected Stokes $({\hat{q}}_{2}, {\hat{u}}_{2})$ $\[\left(\hat{q}_{2}, \hat{u}_{2}\right)\]$ , respectively. The star-shaped plots are from the literature.

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