Polarizability, Volume Expansion and Stress Contributions to the Refractive Index Change of Cu+-Na+ Ion Exchanged Waveguides in Glass

Oven, Robert (2011) Polarizability, Volume Expansion and Stress Contributions to the Refractive Index Change of Cu+-Na+ Ion Exchanged Waveguides in Glass. Applied Optics, 50 (26). pp. 5073-5079. ISSN 0740-3224. (The full text of this publication is not available from this repository)

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Official URL
http://dx.doi.org/10.1364/AO.50.005073

Abstract

The refractive index of optical waveguides formed by electric field assisted Cu+-Na+ ion exchange in two types of glass is measured. Assuming, as in a previously published work, that the observed refractive index increase is solely due to polarizability changes, the difference in electronic polarizability between Cu+ and Na+ ions is determined by applying the Lorentz–Lorenz equation to the data. In our work, the concentration of exchanged ions, which is a necessary input to the Lorentz–Lorenz equation, is determined by combining optical data and electrical data obtained during the exchange. Values for the electronic polarizability difference are in agreement with that in the literature. However, when a correction is made, taking into consideration the measured volume expansion and stress in the glass, the calculated electronic polarizability difference is shown to increase by 19%.

Item Type: Article
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK8300 Optoelectronic devices
Divisions: Faculties > Science Technology and Medical Studies > School of Engineering and Digital Arts > Broadband & Wireless Communications
Depositing User: J. Harries
Date Deposited: 14 Sep 2011 13:11
Last Modified: 02 Jun 2014 15:59
Resource URI: http://kar.kent.ac.uk/id/eprint/28154 (The current URI for this page, for reference purposes)
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