Light reflection by the cuticle ofC. aurigansscarabs: a biological broadband reflector of left handed circularly polarized light

Autor:	L. Arce-Marenco, Ireth García-Aguilar, A. Hernández, C. Barboza-Aguilar, Marcela Hernández-Jiménez, A. Solís, Eduardo Libby, D.E. Azofeifa, William E. Vargas
Rok vydání:	2014
Předmět:	Physics business.industry Reflector (antenna) Polarizer Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Wavelength Optics Chrysina aurigans Liquid crystal law Reflection (physics) Specular reflection business Circular polarization
Zdroj:	Journal of Optics. 16:082001
ISSN:	2040-8986 2040-8978
DOI:	10.1088/2040-8978/16/8/082001
Popis:	Measured reflection spectra from elytra of Chrysina aurigans scarabs are reported. They show a broad reflection band for wavelengths from 0.525 to 1.0 μm with a sequence of maxima and minima reflection values superimposed on a mean value of around 40% for the high reflection band. Different mechanisms contributing to the reflection spectra have been considered, with the dominant effect, reflection of left handed circularly polarized light, being produced by a laminated left handed twisted structure whose pitch changes with depth through the procuticle in a more complex way than that characterizing broad band circular polarizers based on cholesteric liquid crystals.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0d03c6715a8d3e9f535378c8cc1a18a5 https://doi.org/10.1088/2040-8978/16/8/082001 Zobrazit plný text záznamu