Fig. 5: Dependence of C and L on the drain source voltage.

a, b Photocurrent I_PC as a function of the waveplate angle for different drain–source voltages V₁₂ between −10 V (blue) and +10 V (red), for a light incidence angles ϕ = +50° (a) and ϕ = −50° (b). Dots indicate experimental data. Solid lines are fittings to Eq. 1. c, d Dependence of C (c) and L (d) on the drain–source voltage, extracted from the fittings shown in (a) and (b).