Fig. 7.
a Reflection spectra as a function of l. b Reflectivity of the resonance dip and its FWHM as functions of l. c FOM and FOM* as functions of l. Other parameters: p = 1200 nm, w = 622 nm, l = 420 nm, t 1 = 328 nm, t 2 = 28 nm, and t 3 = 18 nm
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