Figure 9
From: Research Progress in Preparation and Application of Photonic Crystals
An image of butterfly wing scales reproduced in alumina: a Optical microscope image of aluminum-coated butterfly wing scales; b Low-magnification SEM image of the aluminum oxide replica of butterfly wing scales; c Energy dispersive X-ray (EDX) spectrum of the alumina replica shown in b; d High magnification SEM image of alumina replica; e SEM image of two broken rib tips on alumina replica [63]