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Application of ellipsometry techniques to biological materials
Linköping University, Department of Physics, Chemistry and Biology, Applied Optics . Linköping University, The Institute of Technology.ORCID iD: 0000-0001-9229-2028
2011 (English)In: THIN SOLID FILMS, ISSN 0040-6090, Vol. 519, no 9, 2589-2592 p.Article in journal (Refereed) Published
Abstract [en]

Ellipsometry is well-suited for bioadsorption studies and numerous reports, mainly using null ellipsometry, are found on this subject whereas investigations addressing structural properties of thin biolayers are few. Here two examples based on the use of spectroscopic ellipsometry (SE) on the latter are briefly discussed. In the first example, time evolution of thickness, spectral refractive index and surface mass density of a fibrinogen matrix forming on a silicon substrate are investigated with SE and a structural model of the protein matrix is discussed. In the second example a model dielectric function concept for protein monolayers is presented. The model allows parameterization of the optical properties which facilitates monitoring of temperature induced degradation of a protein layer. More recently, photonic structures in beetles have been studied with SE. It is shown here that full Mueller-matrix SE can resolve very complex nanostructures in scarab beetles, more specifically chiral structures causing reflected light to become circularly polarized.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND , 2011. Vol. 519, no 9, 2589-2592 p.
Keyword [en]
Bioadsorption, Mueller-matrix ellipsometry, Infrared ellipsomety, Scarab beetles
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-67699DOI: 10.1016/j.tsf.2010.11.082ISI: 000289174200005OAI: diva2:412616
Available from: 2011-04-26 Created: 2011-04-26 Last updated: 2013-10-14

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Arwin, Hans
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Applied Optics The Institute of Technology
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