684349.fig.033a
(a)
684349.fig.033b
(b)
684349.fig.033c
(c)
684349.fig.033d
(d)
684349.fig.033e
(e)
Figure 33: SEM micrographs for transmission gratings prepared using monomer mixtures with average functionalities of (a) 3.5, (b) 3.0, (c) 2.4, (d) 2.0, and (e) 1.5 [81].