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Permanent link (DOI): https://doi.org/10.7939/R3Z979

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Optical tunneling in metal-dielectric multilayers and its application to optical filters Open Access

Descriptions

Other title
Subject/Keyword
photonics
optical filters
optics
surface plasmon
optical tunneling
fluorescence
metal dielectric
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Zhang, Minchang
Supervisor and department
DeCorby, Ray (Electrical and Computer Engineering)
Examining committee member and department
Serpe, Michael (Chemistry)
Wang, Xihua (Electrical and Computer Engineering)
Department
Specialization
Microsystems and Nanodevices
Date accepted
2013-09-26T13:04:28Z
Graduation date
2013-11
Degree
Master of Science
Degree level
Master's
Abstract
Metal-dielectric thin film multilayers are of significant interest as transparent conductors, band-pass filters, and metamaterials. This thesis describes an experimental study of optical tunnelling through periodic metal-dielectric (MD) multilayers with the goal of optimizing the transmittance for either propagating or evanescent waves. Surface-plasmon mediated tunnelling was studied in structures with a symmetric SiO2-Ag-SiO2 unit cell. Tunneling of TE-polarized propagating waves was studied in structures with a symmetric TiO2-Ag-TiO2 unit cell. In both cases, reasonable agreement between experimental results and theoretical predictions was obtained, indicating that potential transmittance theory and admittance-matching concepts can be used to optimize the transmittance of such structures. However, more predictable and stable results were obtained for the SiO2-based structures compared to the TiO2-based structures, which was attributed to oxidation of the Ag layers in the latter case. This motivated a study on alternative termination strategies to improve the peak transmittance of Ag/SiO2-based multilayers.
Language
English
DOI
doi:10.7939/R3Z979
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication
M. C. Zhang, T. W. Allen, and R. G. DeCorby, ‘Experimental study of optimized surface-plasmon-mediated tunneling in metal-dielectric multilayers,’ Appl. Phys. Lett. 103, 071109 (2013)M.C. Zhang, T.W. Allen, B. Drobot, S. McFarlane, A. Meldrum, and R.G. DeCorby, ‘On the transparency and stability of Ag-based metal-dielectric multilayers,’ Applied Optics, in progress

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