Holographic Polymer-Dispersed Liquid Crystals: Materials, Formation, and Applications

Figure 25

Angular dependence of diffraction efficiency for a transmission H-PDLC grating, illustrating (a) normal and (b) overmodulated cases. Key parameters: 𝜃_𝑏=𝜋/6 (external), 𝜑=𝜋/2, 𝐿 = 10 μm, 𝜆₀ = 633 nm, and 𝑎 = 0.020, (a) 𝑛₁ = 0.040, (b) 𝑛₁ = 0.070.

(a)

(b)