Surface plasmon-polariton study of the optical dielectric function of titanium nitride

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Surface plasmon-polariton study of the optical dielectric function of titanium nitride

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Title: Surface plasmon-polariton study of the optical dielectric function of titanium nitride
Author: Hibbins, Alastair P.
Sambles, J. Roy
Lawrence, Christopher R.
Citation: 45 (10), pp. 2051-2062
Publisher: Taylor & Francis
Journal: Journal of Modern Optics
Date Issued: 1998
URI: http://hdl.handle.net/10036/25212
DOI: 10.1080/09500349808231742
Links: http://dx.doi.org/10.1080/09500349808231742
Abstract: This work presents the first detailed study of the optical dielectric function of optically thick TiNx films using grating coupling of radiation to surface plasmon-polaritons. Angle-dependent reflectivities are obtained in the wavelength range 500-875 nm and by comparison with grating modelling theory, we determine both the imaginary and the real parts of the dielectric function. This method provides an alternative to traditional characterization techniques (e.g. Kramers-Kronig analysis) that may require additional information about film thickness, or the sample's optical properties in other parts of the electromagnetic spectrum. We have fitted the determined dielectric function to a model based on a combination of interband absorptions and free-electron response evaluating both the plasma energy and the relaxation time.
Type: Article
Description: This is an electronic version of an article published in Journal of Modern Optics, Vol. 45, Issue 10 (1998), pp. 2051–2062. JOURNAL OF MODERN OPTICS is available online at: http://www.informaworld.com/openurl?genre=article&issn=0950-0340&volume=45&issue=10&spage=2051
Keywords: Fibre opticsOptical communicationsOpticsOptoelectronic effects, devices and systemsOptoelectronics
ISSN: 0950-03401362-3044


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