Search: onr:"swepub:oai:DiVA.org:liu-77876" >
Chirality-induced p...
Chirality-induced polarization effects in the cuticle of scarab beetles: 100 years after Michelson
-
- Arwin, Hans (author)
- Linköpings universitet,Tillämpad optik,Tekniska högskolan
-
- Magnusson, Roger (author)
- Linköpings universitet,Tillämpad optik,Tekniska högskolan
-
- Landin, Jan (author)
- Linköpings universitet,Ekologi,Tekniska högskolan
-
show more...
-
- Järrendahl, Kenneth (author)
- Linköpings universitet,Tillämpad optik,Tekniska högskolan
-
show less...
-
(creator_code:org_t)
- Taylor and Francis: STM, Behavioural Science and Public Health Titles / Taylor and Francis, 2012
- 2012
- English.
-
In: Philosophical Magazine. - : Taylor and Francis: STM, Behavioural Science and Public Health Titles / Taylor and Francis. - 1478-6435 .- 1478-6443. ; 92:12, s. 1583-1599
- Related links:
-
https://liu.diva-por... (primary) (Raw object)
-
show more...
-
http://liu.diva-port...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- One hundred years ago Michelson discovered circular polarization in reflection from beetles. Today a novel Mueller-matrix ellipsometry setup allows unprecedented detailed characterization of the beetles polarization properties. A formalism based on elliptical polarization for description of reflection from scarab beetles is here proposed and examples are given on four beetles of different character: Coptomia laevis - a simple dielectric mirror; Cetonia aurata - a left-hand narrow- band elliptical polarizer; Anoplognathus aureus - a broad-band elliptical polarizer; and Chrysina argenteola - a left-hand polarizer for visible light at small angles, whereas for larger angles, red reflected light is right-handed polarized. We confirm the conclusion of previous studies which showed that a detailed quantification of ellipticity and degree of polarization of cuticle reflection can be performed instead of only determining whether reflections are circularly polarized or not. We additionally investigate reflection as a function of incidence angle. This provides much richer information for understanding the behaviour of beetles and for structural analysis.
Keyword
- scarab beetles
- Mueller-matrix ellipsometry
- elliptical polarization
- structural colours
- TECHNOLOGY
- TEKNIKVETENSKAP
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database