Chirped polarization volume grating for wide FOV and high‐efficiency waveguide‐based AR displays
Kun Yin, Hung‐Yuan Lin, Shin‐Tson Wu
Abstract
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.
Topics & Concepts
GratingPolarization (electrochemistry)OpticsBandwidth (computing)Materials scienceField of viewOptoelectronicsPhysicsComputer scienceTelecommunicationsChemistryPhysical chemistryAdvanced Optical Imaging TechnologiesOptical Coatings and GratingsLiquid Crystal Research Advancements