Liquid Crystal Variable Retarders

Polarimetry Using Liquid Crystal Variable Retarders

Summary The paper introduces a novel approach to high-precision Stokes polarimetry using liquid crystal variable retarders (LCVRs) instead of mechanical rotating waveplates or intensity-splitting techniques. The commercialized Stokes polarimeter achieves superior accuracy, measuring polarization states with uncertainties under ±2×10⁻³. The system is evaluated against a traditional photodetector, showing discrepancies within ±0.3° for linear polarization angles. […]

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Liquid Crystal Operating Principles

Meadowlark Optics DOWNLOAD PRINCIPLES Liquid Crystal Variable Retarders are solid state, real-time, continuously tunable waveplates. Nematic liquid crystals are birefringent materials whose effective birefringence can be changed by varying an applied voltage. Meadowlark Optics Liquid Crystal Retarders are constructed using precision polished, optically flat fused silica windows spaced a few microns apart. The cavity is

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