摘要
We report the ferroelectric liquid crystal (FLC) Pancharatnam-Berry lenses (PBLs) with rapid transmittance tunability. The FLC PBLs were fabricated using a single-step holographic exposure system based on a spatial light modulator working as numerous polarization retarders, providing a simple way to fabricate FLC continuous aligning structures. A state-selection sector containing a binary FLC switch was utilized for fast changing input light’s polarization handedness. Thus, when light passes through a FLC PBL, the output light’s polarization handedness can be switched accordingly. In this case, FLC PBLs can function as concave/convex lenses with rapidly switching speed. Photo sensitive azo-dye material was used as the aligning layer for both FLC PBLs and FLC switches. The fabricated FLC PBLs and the FLC switches show fast switching-on times of 150µs and 50µs respectively. The FLC PBLs combining with the state-selection sector can have potential applications on varies displays and augmented reality.
源语言 | 英语 |
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页(从-至) | 27472-27480 |
页数 | 9 |
期刊 | Optics Express |
卷 | 29 |
期 | 17 |
DOI | |
出版状态 | 已出版 - 16 8月 2021 |