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Determination of refractive index of printed and unprinted paper using spectroscopic ellipsometry.
Linköping University, Department of Physics, Chemistry and Biology, Applied Optics . Linköping University, The Institute of Technology.
Linköping University, Department of Physics, Chemistry and Biology, Applied Optics . Linköping University, The Institute of Technology.ORCID iD: 0000-0001-9229-2028
2004 (English)In: Thin Solid Films, ISSN 0040-6090, Vol. 455-456, 361-365 p.Article in journal (Refereed) Published
Abstract [en]

An attempt is made to address the basic physical properties of printed and unprinted paper surfaces by using spectroscopic ellipsometry in the range 300–900 nm to determine the effective complex-valued refractive index N. Some simulations to address the effect of structural properties have also been done and a qualitative comparison with some other methods, in particular Brewster angle measurements, has been made. Unprinted paper and paper printed in different colors have been studied. The measured absorption properties matched the colors of the used inks well. The effects of roughness on the determined spectra of N are discussed. Simulations show that compared to other methods, like Brewster-angle reflectometry, spectroscopic ellipsometry provides a more accurate value of N, especially in wavelength regions were the color pigments show absorption.

Place, publisher, year, edition, pages
2004. Vol. 455-456, 361-365 p.
Keyword
Spectroscopic ellipsometry; Paper surfaces; Optical properties; Gloss variation
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-13773DOI: 10.1016/j.tsf.2004.01.024OAI: oai:DiVA.org:liu-13773DiVA: diva2:21432
Available from: 2004-12-10 Created: 2004-12-10 Last updated: 2013-10-14
In thesis
1. New methodology for optical sensing and analysis
Open this publication in new window or tab >>New methodology for optical sensing and analysis
2004 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

This thesis describes the research I have done, and partly will do, during my time as a PhD student in the laboratory of Applied Optics at Linköping University. Due to circumstances beyond the scope of this book, this incorporates three quite different projects. The first two, involving gas sensing and measuring on paper with ellipsometry, have been discontinued, whereas the third one, measuring fluorescence with a computer screen and web camera, is in full progress and will be until I complete my studies.

Thus the purpose of this work also has several aspects. Partly, it describes performed research and its results, as well as theoretical background. On the other hand, it provides practical and theoretical background necessary for future work. While the three projects are truly quite different, each of them has certain things in common with each of the other. This is certainly also true for the necessary theory. Two of them involve spectroscopic ellipsometry, for example, while another pair needs knowledge of color theory, etc. This makes it impossible to separate the projects, despite of their differences. Hopefully, these links between the different projects, connecting the different chapters, will make this work whole and consistent in its own way.

Place, publisher, year, edition, pages
Institutionen för fysik, kemi och biologi, 2004. 51 p.
Series
Linköping Studies in Science and Technology. Thesis, ISSN 0280-7971 ; 1090
Keyword
Applied Optics, measuring, ellipsometry, fluorescence, spectroscopic ellipsometry
National Category
Atom and Molecular Physics and Optics
Identifiers
urn:nbn:se:liu:diva-5670 (URN)91-7373-944-8 (ISBN)
Presentation
2004-04-29, 00:00 (English)
Note
Report code: LiU-TEK-LIC-200 4-19. On the day of the public defence the status of article I was: In press and the status of article III was: Manuscript and has a new title. The old title was Computer screen photo-assisted spectroscopic fluorimetry.Available from: 2004-12-10 Created: 2004-12-10 Last updated: 2009-02-26

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Bakker, Jimmy. W. P.Arwin, Hans

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