Abstract
Liquid crystal-based reflective polarization volume grating (PVG), also known as a linear Bragg–Berry phase optical element or a member of volume Bragg gratings (VBGs), is a functional planar structure with patterned orientation of optical axis. Due to the strong polarization selectivity, nearly 100% diffraction efficiency, large diffraction angle, and simple fabrication process, PVGs have found potential applications in novel photonic devices and emerging near-eye displays. In this review paper, we describe the operation principles, discuss the optical properties, present the fabrication methods, and provide promising applications of PVGs for near-eye displays and novel photonic devices.
Highlights
Polarization volume gratings (PVGs) based on patterned cholesteric liquid crystals (CLC) have attracted increasing attention in both liquid crystal and photonics fields [1,2,3]
We review recent advances of LC-based PVGs and propose some novel devices and systems based on this fascinating optical component
Besides reviewing the latest development, we propose two PVG-based devices, photoluminescence enchantment film and polarization converter, and a multi-focal-plane system for waveguide-based augmented reality (AR) displays
Summary
Polarization volume gratings (PVGs) based on patterned cholesteric liquid crystals (CLC) have attracted increasing attention in both liquid crystal and photonics fields [1,2,3]. Ascribed to its intriguing formation process and distinct optical properties, PVGs is useful for novel optical devices and emerging displays, such as near-eye optical systems [4,5]. Various PVG-based applications are emerging, such as beam steering, near-eye optical systems, head-up displays, and so on [16,17,18,19]. We review recent advances of LC-based PVGs and propose some novel devices and systems based on this fascinating optical component. Besides reviewing the latest development, we propose two PVG-based devices, photoluminescence enchantment film and polarization converter, and a multi-focal-plane system for waveguide-based AR displays
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
