Eur. Phys. J. Appl. Phys.
Volume 37, Number 1, January 2007
|Page(s)||61 - 64|
|Section||Laser and Optics|
|Published online||15 November 2006|
Spectroscopic ellipsometry investigation of azo dye and azo dye doped polymer
Department of Physics, University of Jordan, 11942 Amman, Jordan
2 Department of Physics, University of Durham, OEM Group, DH1 3LE, UK
Corresponding author: O.firstname.lastname@example.org
Revised: 8 August 2006
Accepted: 11 September 2006
Published online: 15 November 2006
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.
PACS: 42.70.Jk – Polymers and organics / 42.70.-a – Optical materials / 07.57.Ty – Infrared spectrometers, auxiliary equipment, and techniques
© EDP Sciences, 2006
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