EPJ Web of Conferences
Volume 5, 2010API'09 - First NanoCharM Workshop on Advanced Polarimetric Instrumentation
|Number of page(s)||7|
|Section||New frontiers in polarimetry|
|Published online||02 June 2010|
Analysis, optimization and implementation of a variable retardance based polarimeter
Dept. of Physics, Universitat Autònoma de Barcelona,
2 ALBA Synchrotron Light Source Facility, Cerdanyola del Vallès, Spain
3 Dept. of Physics, Universidad de Buenos Aires, Buenos Aires, Argentina
4 Dept. of Physics, Ing. Sistemas y Teoría de la Señal, Univ. Alicante, Alicante, Spain
5 Dept. de Ciencia de Materiales, Optica y Tecnología de la Señal, Univ. Miguel Hernandez, Elche, Spain
We present a comprehensive analysis, optimization and implementation of a Stokes polarimeter based on two liquid crystals acting as variable retarders. For the optimization process, the Conditional Number or the Equally Weighted Variance indicators are applied and compared as a function of different number of polarization analyzers. Moreover, some of the optimized polarimeter configurations are experimentally implemented and the influence of small experimental deviations from the optimized configuration values on the amplification of the Stokes component error is also studied. Some experimental results obtained by using the implemented polarimeters, when measuring different incidence states of polarization, are provided.
© Owned by the authors, published by EDP Sciences, 2010
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