High-efficiency aerial display using a liquid crystal polarization grating, a retroreflector array, and a right-angle prism.
Sign Up to like & getrecommendations! Published in 2020 at "Applied optics"
DOI: 10.1364/ao.390629
Abstract: An aerial display scheme consisting of an orthogonal circular polarization grating (OCPG), a waveplate, a retroreflector array (RRA), and a right-angle prism (RAP) was developed. Because of the OCPG's functionality, retroreflected light from the RRA… read more here.
Keywords: retroreflector array; aerial display; display; polarization grating ... See more keywords
Flexible and wide-range tuning of liquid crystal polarization grating period based on single and interference-free exposure.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.458791
Abstract: We propose a period control method of liquid crystal polarization grating (LCPG) based on an nterference-free and single exposure process. By adjusting three parameters of exposure setup, including incident angle of exposure beam, wedge angle… read more here.
Keywords: crystal polarization; period; liquid crystal; polarization grating ... See more keywords
Polarization grating based circular subaperture stitching interferometer insensitive to vibration and alignment error.
Sign Up to like & getrecommendations! Published in 2025 at "Optics express"
DOI: 10.1364/oe.553881
Abstract: The subaperture stitching interferometry can extend the dynamic range of the interferometer and is widely used for high-resolution measurement of large-aperture, high-slope aspheres. Most subaperture stitching interferometry requires a high-precision multi-axis motion control system and… read more here.
Keywords: subaperture; grating based; subaperture stitching; polarization grating ... See more keywords