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Nanostructured optical waveguides for thin-film characterization

Duran, Hatice and Lau, K. H. Aaron and Cameron, Petra J. and Gitsas, Antonis and Steinhart, Martin and Knoll, Wolfgang (2011) Nanostructured optical waveguides for thin-film characterization. In: Functional Polymer Films. Wiley-VCH Verlag, Weinheim, pp. 695-721. ISBN 9783527638482

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Abstract

In this review, we summarize some of our efforts in parallel with other research groups' studies in designing, assembling, and structurally and functionally characterizing nanostructured materials using optical waveguide spectroscopy (OWS). We focus on the study of porous nanostructures: (i) cylindrical thin films (ii) mesoporous thin films, and (iii) nanorod arrays as optical waveguides for high sensitivity biosensing. We discuss the waveguiding properties of these thin films in the visible wavelengths and theoretical description of nanostructured hybrid optical waveguides by effective medium theory (EMT). We demonstrate how high sensitivity can be achieved by modifying pore walls with small functional groups (i.e. silanes) as well as polypeptide brushes. When using also mesoporous semiconducting materials (TiO2) hybrid architectures, simultaneous measurement of OWS and electrochemistry can be possible with very interesting photophysical properties that can be useful also for solar-cell applications. Other strategies for using the anodic aluminum oxide (AAO) layers as a template mold include the growth of metal or polymeric nanorod arrays from different functional monomers that after the dissolution of the template are still able to guide light. This opens up novel concepts for integrated optics platforms with nanostructured materials.

Item type: Book Section
ID code: 45469
Notes: M1 - 2
Keywords: nanorod arrays, optical waveguides, thin-film characterization, optical waveguide spectroscopy, cylindrical nanostructures, mesoporous waveguides, Chemistry, Chemistry(all)
Subjects: Science > Chemistry
Department: Faculty of Science > Pure and Applied Chemistry
Depositing user: Pure Administrator
Date deposited: 29 Oct 2013 14:19
Last modified: 03 Jan 2019 13:34
Related URLs:
URI: https://strathprints.strath.ac.uk/id/eprint/45469
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