Tunable structural color inspired by Papilio blumei butterfly

摘要

2D photonic-crystal structures of Papilio blumei butterfly were constructed and the corresponding reflectance spectra were simulated by finite-difference time-domain (FDTD) method. The structural color of butterfly depends on the thickness of film and the size of air hole. Hence, we can obtain any color by manipulating the parameters of FDTD simulation model.