Optically Rewritable Liquid Crystal Display

Zhang, Wanlong; Srivastava, Abhishek Kumar; Chigrinov, Vladimir G.; Kwok, Hoi‐Sing

doi:10.1002/9781119745624.ch8

Cited by 1 publication

(1 citation statement)

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“…SD1 molecules are sensitive to the polarization of incident light. After absorbing ultraviolet photons, the dye molecules isomerize and finally tend to orientate perpendicularly to the local polarization because of their dichroic absorptions [49][50][51]. SD1 is rewritable and only the last photo-reorientation will be recorded, which drastically facilitates the photo-patterning process.…”

Section: Methodsmentioning

confidence: 99%

Vectorial liquid-crystal holography

Wang,

Zhou,

Zhang

et al. 2024

eLight

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Vectorial optics with fine inhomogeneous polarization control are highly desired. Metasurfaces have been captivated a promising candidate, but their static post-fabrication geometry largely limits the dynamic tunability. Liquid crystal (LC) is usually employed as an additional index-changing layer together with metasurfaces. Unfortunately, most of the reported LCs only impart a varying but uniform phase on top of that from the metasurface, which we term “scalar” LC optics. Here, we pixelate a single-layer LC to display versatile and tunable vectorial holography, in which the polarization and amplitude could be arbitrarily and independently controlled at varying spatial positions. Furthermore, the subtle and vectorial LC-holography highlights the broadband and electrically-switchable functionalities. Our vectorial LC holography reveals significant opportunities for advanced cryptography, super-resolution imaging, and many other applications.

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Section: Methodsmentioning

confidence: 99%