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. 2017 Feb 22;17(2):428. doi: 10.3390/s17020428

Figure 18.

Figure 18

(A) 1D, 2D, and 3D PC systems are shown with the different colors corresponding to materials of different refractive indices; (B) Upon analyte binding, the resonant wavelength of the reflected light changes its wavelength from the original value by Δλ.