Consistency and variations in optical characteristics of four-layer polymeric waveguides |
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| Authors: | Rajesh Kumar Amit Pratap Singh K.N. Tripathi |
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| Affiliation: | a Department of Physics, Sikkim Manipal Institute of Technology, Majitar, Rangpo, Sikkim (East) 737132, India
b Department of Electronic Science, University of Delhi, South Campus, New Delhi 21, India |
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| Abstract: | In the present work, four-layer polymeric waveguides have been fabricated and characterized by interchanging the film layer. Using polyvinyl alcohol (PVA) and styrene acrylonitrile (SAN) polymer it has been shown that polymers do not loose their own property in multilayer structure and better efficiency can be achieved in the form of low propagation losses and mode filtration. Due to high contrast of PVA and SAN films, a broad spectrum of refractive index in four-layer structure has been achieved. |
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| Keywords: | Styrene acrylonitrile (SAN) Polyvinyl alcohol (PVA) Prism coupling method Dip coating method Optical waveguide |
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