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Symmetries and relationships between elements of the Mueller matrix spectra of the cuticle of the beetle Cotinis mutabilis
Linköping University, Department of Physics, Chemistry and Biology, Applied Optics . Linköping University, The Institute of Technology. Cinvestav-IPN, Unidad Querétaro, Libramiento Norponiente 2000, Querétaro, Mexico.
Linköping University, Department of Physics, Chemistry and Biology, Applied Optics . Linköping University, The Institute of Technology.ORCID iD: 0000-0003-2749-8008
Linköping University, Department of Physics, Chemistry and Biology, Applied Optics . Linköping University, The Institute of Technology.ORCID iD: 0000-0001-9229-2028
Linköping University, Department of Physics, Chemistry and Biology, Applied Optics . Linköping University, The Institute of Technology. Cinvestav-IPN, Unidad Querétaro, Libramiento Norponiente 2000, Querétaro, Mexico.
2014 (English)In: Thin Solid Films, ISSN 0040-6090, E-ISSN 1879-2731, Vol. 571, 660-665 p.Article in journal (Refereed) Published
Abstract [en]

The optical properties of light reflected from the cuticle of the scarab beetle Cotinis mutabilis are studied using variable angle Mueller matrix spectroscopic ellipsometry. Reflection of left-handed polarized light is demonstrated. Large amplitude interference oscillations in the elements of the normalized Mueller matrix (M) reveal highly transparent materials comprising the beetle cuticle. Off-diagonal elements in M obey simple symmetry relationships due to the constraint in the cross-polarized reflection coefficients between p and s polarizations of chiral systems, rps = − rsp. Based on the latter constraint and further interrelationships experimentally investigated, the number of independent elements in M resulted in only six. Reciprocity is probed from measurements performed in opposite sample orientations and the effects on M due to sample rotation by 90° are discussed. The results suggest relatively large areas in the cuticle of C. mutabilis with a helicoidal structure comprised of fibrils with a well-defined orientation.

Place, publisher, year, edition, pages
Elsevier, 2014. Vol. 571, 660-665 p.
Keyword [en]
Structural color; Left-handed polarized light; Mueller matrix; Scarab beetles
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:liu:diva-103365DOI: 10.1016/j.tsf.2013.11.144ISI: 000346055200061OAI: oai:DiVA.org:liu-103365DiVA: diva2:688905
Conference
6th International Conference on Spectroscopic Ellipsometry (ICSE-VI), May 26–31, 2013, Kyoto, Japan
Funder
Swedish Research CouncilKnut and Alice Wallenberg Foundation
Available from: 2014-01-18 Created: 2014-01-18 Last updated: 2017-12-06Bibliographically approved

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Järrendahl, KennethArwin, HansMendoza-Galván, Arturo

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