592754.fig.004a
(a)  nm
592754.fig.004b
(b)
592754.fig.004c
(c) nm
Figure 4: The normalized magnetic field distribution ( ) in the cross-section for TM polarized plane wave incidence at the wavelengths of (a) 545 nm, (b) 670 nm, and (c) 760 nm, corresponding to the three absorption enhancement peaks “a,” “b,” and “c” displayed in Figure 2(b), respectively.