Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2020 Feb 17;28(4):4921-4927.
doi: 10.1364/OE.385540.

Broadband wide-view Pancharatnam-Berry phase deflector

Junyu Zou, Tao Zhan, Jianghao Xiong, Shin-Tson Wu

Broadband wide-view Pancharatnam-Berry phase deflector

Junyu Zou et al. Opt Express. .

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.

PubMed Disclaimer

LinkOut - more resources