Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a–c) Theoretical spectral reflectance of three-layer, chitin–air–chitin multilayers, in which the optical thicknesses are multiples of a quarter wavelength (λ=600 nm). The configurations of the layers are (a) λ/4–λ/4–λ/4, (b) 3λ/4–λ/4–3λ/4 and (c) 3λ/4–3λ/4–3λ/4. (d) Spectral reflectance of a single chitin plate of optical thickness 800 nm.
