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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 26 — Sep. 10, 2011
  • pp: 5073–5079

Polarizability, volume expansion, and stress contributions to the refractive index change of Cu + - Na + ion exchanged waveguides in glass

Robert Oven  »View Author Affiliations

Applied Optics, Vol. 50, Issue 26, pp. 5073-5079 (2011)

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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%.

© 2011 Optical Society of America

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(160.3130) Materials : Integrated optics materials

ToC Category:
Integrated Optics

Original Manuscript: April 4, 2011
Revised Manuscript: July 5, 2011
Manuscript Accepted: July 13, 2011
Published: September 5, 2011

Robert Oven, "Polarizability, volume expansion, and stress contributions to the refractive index change of Cu+-Na+ ion exchanged waveguides in glass," Appl. Opt. 50, 5073-5079 (2011)

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