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. 2017 Jan 25;7:41373. doi: 10.1038/srep41373

Figure 1.

Figure 1

(a) and (b) show the side- and top-view of the six-band MPA, respectively, the parameters (in μm) of the MPA are: l1 = l1x = l1y = 55, l2 = l2x = l2y = 65, t1 = 6, t2 = 4.5, P = Px = Py = 75; (c) is the absorption spectrum of the designed six-band MPA.