Figure 2
From: Electric field-controlled transformation of the eigenmodes in a twisted-nematic Fabry–Pérot cavity

Angles θ of deviation of the linear polarization of the modes as a function of the LC director orientation at the output cavity mirror. Triangles show experimental values for the ro (Δ) and re (∇) cavity modes. Open circles show the numerical simulation data and the solid and dashed lines are built using Eq. (1).