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Thickness Dependent Optical Properties of WO3 Thin Film using Surface Plasmon Resonance

Published online by Cambridge University Press:  12 February 2013

Ayushi Paliwal
Affiliation:
Department of Physics and Astrophysics, University of Delhi, Delhi 110007, INDIA
Monika Tomar
Affiliation:
Department of Physics, Miranda House, University of Delhi, Delhi 110007, INDIA
Vinay Gupta*
Affiliation:
Department of Physics and Astrophysics, University of Delhi, Delhi 110007, INDIA
*
*Email id:[email protected]; [email protected]Contact no: +91 9811563101
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Abstract

The effect of tungsten oxide (WO3) thin film thickness on the surface plasmon resonance (SPR) properties have been investigated. WO3 films of varying the thickness (36 nm, 60 nm, 80 nm, 100 nm, 150 nm and 200nm) have been deposited onto Au coated prism (Au/prism) by radio frequency (RF) magnetron sputtering technique. The SPR responses of bilayer films were fitted with the Fresnel’s equations in order to calculate the dielectric constant of WO3 thin film. The variation of complex dielectric constant and refractive index with the thickness of WO3 thin film was studied.

Type
Articles
Copyright
Copyright © Materials Research Society 2013 

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References

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