Design and fabrication of an achromatic liquid crystal polarization grating with large deflection angle for visible wavelength
Yi Chen,
Jianguo Wang,
Fajia Wang
et al.
Abstract:Traditional liquid crystal polarization gratings (LCPG) are limited to satisfying the half-wave condition at a single wavelength. However, maintaining the high diffraction efficiency across a broad bandwidth presents a significant challenge. In this study, an achromatic polarization grating with a dual-twist structure and a period of Λ=1.5μm was fabricated utilizing liquid crystal polymers and the photo-alignment technology. The performance of this liquid crystal polarization grating was evaluated with the spe… Show more
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