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Chirped polarization volume grating for wide FOV and high‐efficiency waveguide‐based AR displays |
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| Authors: | Kun Yin Hung‐Yuan Lin Shin‐Tson Wu |
| Abstract: | We demonstrate a reflective chirped polarization volume grating as a strong contender for wide field‐of‐view augmented reality display systems. By introducing gradient pitch along the beam propagation direction, the angular bandwidth extends dramatically from 18° to 54° while keeping over 80% average efficiency and 95% peak efficiency. |
| Keywords: | augmented reality gradient pitch structure liquid crystals polarization volume grating |