John Semmen
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Colorless photoalignment material for fabricating liquid crystal holographic optical elements Open
The optical properties of a new colorless photoalignment material, RN-4942, its fabrication stability, and applications in fabricating passive liquid crystal devices, including Pancharatnam-Berry phase optical elements and polarization vol…
75‐3: Achromatic Liquid‐Crystal Lens for Near‐Eye Displays Open
Liquid‐crystal optics is a promising optical element for near‐eye display as it provides an ultrathin formfactor and lightweight. However, its severe chromatic aberrations impose a big challenge for full‐color display applications. In this…
Coarse Integral Volumetric Imaging Display with Time and Polarization Multiplexing Open
This paper introduces an innovative approach to integral volumetric imaging employing time and polarization multiplexing techniques to present volumetric three-dimensional images. Traditional integral volumetric imaging systems with a coar…
Achromatic diffractive liquid-crystal optics for virtual reality displays Open
Diffractive liquid-crystal optics is a promising optical element for virtual reality (VR) and mixed reality as it provides an ultrathin formfactor and lightweight for human factors and ergonomics. However, its severe chromatic aberrations …
52‐4: <i>Distinguished Student Paper:</i> Switchable polarization volume gratings for augmented reality waveguide displays Open
A new electrically driven polymer stabilized polarization volume grating (PVG) is developed. Such a switchable PVG exhibits submillisecond response time, large range of diffraction efficiency modulation, and high see‐through quality. Its p…