26.1: Dual Ferroelectric Liquid Crystal Polarization Converter for Fast (100 kHz) and Bi‐stable Beam Steering Based on Pancharatnam‐Berry Devices

A high‐efficiency (97%) fast polarization converter (100 kHz) is achieved using Ferroelectric Liquid Crystal (FLC). Innovatively, by cascading FLC cells, no diffraction and residual light loss are achieved. The flickering is less than 5%.. The contrast ratio is 1000:1. Bi‐stable focus modulation is...

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Bibliographic Details
Published in:SID International Symposium Digest of technical papers 2023-04, Vol.54 (S1), p.178-181
Main Authors: SUN, Zhibo, TAM, Alwin, YUAN, Zhengnan, DONG, Shoucheng, HUO, Yipeng, CHEN, Rongsheng, YEUNG, Fion S. Y., KWOK, Hoi-Sing
Format: Article
Language:English
Subjects:
Augmented reality
Beam steering
Ferroelectric Liquid Crystal (FLC)
Ferroelectric materials
Ferroelectricity
LiDAR
Light diffraction
Liquid crystals
Polarization
Polarization converter
Virtual reality
VR/AR
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Summary:A high‐efficiency (97%) fast polarization converter (100 kHz) is achieved using Ferroelectric Liquid Crystal (FLC). Innovatively, by cascading FLC cells, no diffraction and residual light loss are achieved. The flickering is less than 5%.. The contrast ratio is 1000:1. Bi‐stable focus modulation is acheived. It is a promising candidate not just for display technologies, but also for high‐ efficiency beam‐steering applications, such as Virtual Reality (VR)/Augmented Reality (AR), Light Ranging and Detection (LiDAR).
ISSN:0097-966X
2168-0159
DOI:10.1002/sdtp.16257