Far-Field Analysis on Reflecting Colors of Dielectric Nanosphere Metasurface

Figure 6

(a) Simple example of an image with three pixels, red, green, and blue pixels. From (a) to (d), red, green, and blue pixels consist of square arrays of silicon nanospheres, described by (, ), (, ), and (, ), respectively. Red, green, and blue arrays are sized by , , and nanospheres, respectively. Pixels are separated with a distance of 525 nm. Poynting vector images of the reflected light for different incident wavelengths of (b) 640 nm, (c) 525 nm, and (d) 465 nm, which are the peak wavelengths of the reflectance curves of red, green, and blue structures.

(a)

(b)

(c)

(d)