684349.fig.035a
(a)
684349.fig.035b
(b)
684349.fig.035c
(c)
684349.fig.035d
(d)
Figure 35: The same magnification SEM photographs of the surface of H-PDLC Bragg grating of different LC contents: (a) 20 wt%, (b) 30 wt%, (c) 40 wt%, and (d) 28 wt%.