Absence of red structural color in photonic glasses, bird feathers, and certain beetles

DSpace/Manakin Repository

Absence of red structural color in photonic glasses, bird feathers, and certain beetles

Citable link to this page

 

 
Title: Absence of red structural color in photonic glasses, bird feathers, and certain beetles
Author: Magkiriadou, Sofia; Park, Jin-Gyu; Kim, Young-Seok; Manoharan, Vinothan N.

Note: Order does not necessarily reflect citation order of authors.

Citation: Magkiriadou, Sofia, Jin-Gyu Park, Young-Seok Kim, and Vinothan N. Manoharan. 2014. “Absence of Red Structural Color in Photonic Glasses, Bird Feathers, and Certain Beetles.” Phys. Rev. E 90 (6) (December). doi:10.1103/physreve.90.062302.
Full Text & Related Files:
Abstract: Colloidal glasses, bird feathers, and beetle scales can all show structural colors arising from short-ranged spatial correlations between scattering centers. Unlike the structural colors arising from Bragg diffraction in ordered materials like opals, the colors of these photonic glasses are independent of orientation, owing to their disordered, isotropic microstructures. However, there are few examples of photonic glasses with angle-independent red colors in nature, and colloidal glasses with particle sizes chosen to yield structural colors in the red show weak color saturation. Using scattering theory, we show that the absence of angle-independent red color can be explained by the tendency of individual particles to backscatter light more strongly in the blue. We discuss how the backscattering resonances of individual particles arise from cavity-like modes and how they interact with the structural resonances to prevent red. Finally, we use the model to develop design rules for colloidal glasses with red, angle-independent structural colors.
Published Version: doi:10.1103/PhysRevE.90.062302
Other Sources: http://arxiv.org/pdf/1409.8575v2.pdf
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:14022572
Downloads of this work:

Show full Dublin Core record

This item appears in the following Collection(s)

 
 

Search DASH


Advanced Search
 
 

Submitters