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Spectroscopic ellipsometry investigation of azo dye and azo dye doped polymer

Published online by Cambridge University Press:  15 November 2006

O. Taqatqa  and
H. Al Attar
O. Taqatqa*
Affiliation:
Department of Physics, University of Jordan, 11942 Amman, Jordan
H. Al Attar
Affiliation:
Department of Physics, University of Durham, OEM Group, DH1 3LE, UK
*
O.taqatqa@ju.edu.jo
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Abstract

The optical constants of azo dye (Methyl Red (MR)) and azo dye doped polymer (ADP) (Polymethylmethacrylate (PMMA)) MR/PMMA have been investigated using Variable Angle Spectroscopic Ellipsometry (VASE). Pure MR was modeled using Lorentz formula with three oscillators. A Bruggmann effective medium approximation layer was employed with three constituents (MR, PMMA and void) to represent the thin film of MR/PMMA. The optical constants of MR/PMMA were determined at various MR concentrations. The results reveal that the optical constants of the blend system are a linear interpolation of the two constituents. Average optical constants were determined using multiple sample analysis.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 37 , Issue 1 , January 2007 , pp. 61 - 64
Copyright
© EDP Sciences, 2006

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