Broadband wide-view Pancharatnam–Berry phase deflector
Junyu Zou, Tao Zhan, Jianghao Xiong, Shin‐Tson Wu
Abstract
We demonstrate a high-efficiency achromatic, wide-view Pancharatnam-Berry phase deflector (PBD) based on a three-layer multi-twist structure. A practical method to measure the thickness and twist angle of liquid crystal (LC) polymer films is developed based on Jones matrix of twist-nematic liquid crystals. With the help of this new measurement method, we fabricated a three-layer multi-twist PBD. The imaging performance and the angular response of the achromatic wide-view PBD are also characterized. Potential application of PBD for near-eye displays is foreseeable.
Topics & Concepts
Achromatic lensLiquid crystalOpticsGeometric phaseTwistMueller calculusLiquid-crystal displayPhase (matter)BroadbandMaterials scienceRefractive indexOptoelectronicsPhysicsScatteringPolarimetryCondensed matter physicsQuantum mechanicsMathematicsGeometryLiquid Crystal Research AdvancementsPhotonic and Optical DevicesAdvanced Optical Imaging Technologies