684349.fig.025a
(a)
684349.fig.025b
(b)
Figure 25: Angular dependence of diffraction efficiency for a transmission H-PDLC grating, illustrating (a) normal and (b) overmodulated cases. Key parameters: (external), , = 10 μm, = 633 nm, and = 0.020, (a) = 0.040, (b) = 0.070.