(a)

(b)

Figure 3: Field dependence of transmission curve (squares), first-order diffraction curve (circles), and total transmission curve (triangles) for (a) a POLICRYPS grating, (b) a PDLC grating. The insets show typical (a) POLICRYPS, (b) PDLC grating morphology with the same period, observed under a polarizing optical microscope [18].