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Studies of Nanostructured Layers with UV-VIS Spectroscopic Ellipsometry
Linköping University, Department of Physics, Chemistry and Biology.
2008 (English)Independent thesis Basic level (professional degree), 15 credits / 22,5 HE creditsStudent thesis
Abstract [en]

In this report a model analysis is presented for three different nanostructured layers: silicon nanotips (SiNTs), gold nanosandwiches and Split Ring Resonators (SRR). The last two materials are metamaterials and both may show a negative refraction index. Experimental data are obtained for every sample using a variable angle spectroscopic ellipsometer. For the gold nanosandwiches, also an infrared ellipsometric measurement is done. For complex layers like these, advanced modeling is necessary. A recently developed analysis program including options for both anisotropic permittivity and permeability is used. A realistic model is presented in this report for the gold nanosandwiches, which also includes the magnetic activity in the layer itself. The results for the nanosandwiches are reasonable, and a magnetic oscillation is found in the horizontal plane at around 260 nm although it was not expected to have a resonance that far in the UV-range. For the SiNTs and the SRR it was not possible to create an acceptable model.

Place, publisher, year, edition, pages
2008. , 36 p.
National Category
Atom and Molecular Physics and Optics
URN: urn:nbn:se:liu:diva-12053ISRN: LITH-IFM-PR-EX--08/2021--SEOAI: diva2:25063
Subject / course
Applied Optics
Physics, Chemistry, Mathematics
Available from: 2008-10-07 Created: 2008-10-06 Last updated: 2012-04-24Bibliographically approved

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Department of Physics, Chemistry and Biology
Atom and Molecular Physics and Optics

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