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We investigate the influence of the incident light polarization on the 2pLADA spatial resolution. By comparing 2pLADA results obtained using linear, circular and radial polarizations we show that certain polarizations offer advantages in particular applications.
Comparison of high-resolution sub-surface microscopy shows that illumination with linear polarization resolves an edge with resolutions of 95 nm and 120 nm, depending on E-field orientation, while radial polarization achieves a resolution of 98 nm.
Liquid crystal twisted-nematic polarization rotators in the Mauguin condition are shown to be more achromatic, less prone to high-frequency modulations caused by internal reflections than compound wave plates, and can be fabricated cost effectively at multi-inch apertures.
Liquid crystal polarizers and waveplates are an enabling technology for large fusion lasers. While damage and replacement rates of liquid crystal optics remain remarkably low, degradation in polarizer performance has been noted and studied.
High-damage-threshold liquid crystal devices based on optically aligned coumarin alignment layers have been fabricated to generate beams with radial and azimuthal polarization states.
Achromatic laser-beam shapers employing spatially varying twisted nematic liquid crystals (LC's) have been demonstrated for high-peak-power applications. The LC molecular orientation was achieved through photolithographic patterning of an alignment layer using polarized UV light.
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