Polarization artefacts correction procedure for a spectro-polarimetric goniometer

A new goniometric device for spectro-polarimetric BRDF measurements is under development. This goniometer will measure linear and circular polarization of materials. Different instrument quality tests were realized in order to identify factors affecting the measured spectra and to obtain functional...

Full description

Saved in:
Bibliographic Details
Published in2014 IEEE Geoscience and Remote Sensing Symposium pp. 3001 - 3004
Main Authors Levesque, Martin P., Dissanska, Maria, Ardouin, Jean-Pierre
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2014
Subjects
ASD spectrometer
goniometer
Goniometers
optic fiber bending
Optical fiber polarization
Optical fiber sensors
Polarimetric BRDF
polarimetric sensitivity
Sensitivity
Variable speed drives
Online AccessGet full text

Cover

More Information
Summary:A new goniometric device for spectro-polarimetric BRDF measurements is under development. This goniometer will measure linear and circular polarization of materials. Different instrument quality tests were realized in order to identify factors affecting the measured spectra and to obtain functional relationship between the instrument output and the real reflective properties of the materials. The most limiting of all factors influencing measured spectra was the polarization sensitivity of the spectrometer. Moreover, optical fiber bundle connected to the spectrometer input has unpredictable behavior in polarized light. In this paper, we present the artefacts produced by sensitivity of the spectrometer to the polarized light and describe the adequate measurement procedure to maintain instrument response under control and to acquire reliable BRDF measurements.
ISSN:2153-6996
2153-7003
DOI:10.1109/IGARSS.2014.6947108