Imaging linear polarimetry using a single ferroelectric liquid crystal modulator.
In the field of polarimetry, ferroelectric liquid crystal cells are mostly used as bistable polarization rotators suitable to analyze crossed polarizations. This paper shows that, provided such a cell is used at its nominal wavelength and correctly driven, its behavior is close to that of a tunable half-wave plate, and it can be used with much benefit in lightweight imaging polarimetric setups. A partial Stokes polarimeter using a single digital video camera and a single ferroelectric liquid crystal modulator is designed and implemented for linear polarization analysis. Polarization azimuthal angle and degree of linear polarization are available at 150 frames per second with a good accuracy.
Gendre
Luc
L
Laboratoire Modélisation Intelligence Processus Systèmes (EA 2332), Ecole Nationale Supérieure d’IngénieursSud Alsace, Université de Haute-Alsace, 12 rue des Frères Lumière, 68093 Mulhouse Cedex, France. luc.gendre@uha.fr
Foulonneau
Alban
A
Bigué
Laurent
L
D050866:Liquid Crystals; D055096:Optical Devices; D009904:Optical Rotation; D014741:Video Recording