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Opto-Electronics Review

Editor-in-Chief: Jaroszewicz, Leszek

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Volume 22, Issue 3


Analytical sensitivity and reflected power through a D-shape optical fibre sensor

M. Ubeid
  • Department of Physics, Faculty of Science, Islamic University of Gaza, P.O. 108, Gaza, Gaza Strip, Palestinian Authority
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/ M. Shabat
  • Department of Physics, Faculty of Science, Islamic University of Gaza, P.O. 108, Gaza, Gaza Strip, Palestinian Authority
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Published Online: 2014-06-29 | DOI: https://doi.org/10.2478/s11772-014-0195-x


In this paper, the reflection properties and sensitivity of a D-shape optical fibre sensor are investigated theoretically and numerically with the emphasis on the metal layer [gold (Au), silver (Ag), copper (Cu), and aluminum (Al)]. Maxwell’s equations are used to determine the electric and magnetic fields of the incident waves at each layer. Snell’s law is applied and the boundary conditions are imposed at each layer interface to calculate the reflected power and sensitivity of the sensor. In the numerical results, the mentioned power is computed and illustrated as a function of wavelength, angle of incidence, metal layer thickness and refractive index of the external medium when the metal layer changes. The variation of sensitivity with the wavelength of the incident radiations is also proposed for some of the given metals.

Keywords: metal layer; sensitivity; sensors; wavelength

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About the article

Published Online: 2014-06-29

Published in Print: 2014-09-01

Citation Information: Opto-Electronics Review, Volume 22, Issue 3, Pages 191–195, ISSN (Online) 1896-3757, DOI: https://doi.org/10.2478/s11772-014-0195-x.

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© 2014 SEP, Warsaw. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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