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Mueller matrix spectroscopic ellipsometry study of chiral nanocrystalline cellulose films
Cinvestav IPN, Mexico.
Cinvestav IPN, Mexico.
Sao Paulo State University of UNESP, Brazil.
Sao Paulo State University of UNESP, Brazil; University of Sao Paulo, Brazil.
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2018 (English)In: Journal of Optics, ISSN 2040-8978, E-ISSN 2040-8986, Vol. 20, no 2, article id 024001Article in journal (Refereed) Published
Abstract [en]

Chiral nanocrystalline cellulose (NCC) free-standing films were prepared through slow evaporation of aqueous suspensions of cellulose nanocrystals in a nematic chiral liquid crystal phase. Mueller matrix (MM) spectroscopic ellipsometry is used to study the polarization and depolarization properties of the chiral films. In the reflection mode, the MM is similar to the matrices reported for the cuticle of some beetles reflecting near circular left-handed polarized light in the visible range. The polarization properties of light transmitted at normal incidence for different polarization states of incident light are discussed. By using a differential decomposition of the MM, the structural circular birefringence and dichroism of a NCC chiral film are evaluated.

Place, publisher, year, edition, pages
IOP PUBLISHING LTD , 2018. Vol. 20, no 2, article id 024001
Keywords [en]
Mueller matrix; chiral films; biomimetic materials
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:liu:diva-144436DOI: 10.1088/2040-8986/aa9e7dISI: 000419338900001OAI: oai:DiVA.org:liu-144436DiVA, id: diva2:1176708
Note

Funding Agencies|Knut and Alice Wallenberg foundation; Swedish Research Council; Carl Tryggers foundation; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University [2009-00971]; Brazilian agency FAPESP; Brazilian agency CNPq; FAPESP [2014/12424-2]

Available from: 2018-01-23 Created: 2018-01-23 Last updated: 2018-03-08

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