Nanowire Arrays: Color Generation and Refractive Index Sensing Using Diffraction from 2D Silicon Nanowire Arrays (Small 1/2014)

Tunable structural color generation from vertical silicon nanowires arranged in different square lattices is realized using simple diffraction. As J. Walia, S. S. Saini, and co-workers report on page 144, the generated colors depend on the angle of incidence of the incoming light, the spacing between the nanowires, and the local refractive index.