Figure 4
From: Light-induced rotations of chiral birefringent microparticles in optical tweezers
(a) Spinning torque (red dash-dot curve) and maximum aligning torque (blue dash-dot-dot curve) based on the averaged results of the fit in Fig. 3. Black solid curve represents the expected torque if only reflection from the chiral particle was the origin of rotations. Gray dashed areas are the regions where particle rotations are allowed. (b) Expected values of the rotational frequencies normalized to their maxima at different reflectance of the trapped particle and at fixed retardance (obtained as the average value from the fit of experimental data).
