2024
DOI: 10.1002/adfm.202402603
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High‐Capacity Photochromic Rotary Encoder for Information Encryption and Storage

Xiyang Li,
Meng Liu,
Jie Shao
et al.

Abstract: Photochromic materials are widely used in optical data storage, data encryption, and anti‐counterfeiting because of their ability to be written, erased, and read repeatedly. However, conventional information encryption and storage capabilities based on a “matrix” pattern in a 2D plane are limited to fewer storage dimensions, making information less secure. Here, a new concept of expanding the storage dimensions is presented by manipulating the rotation angle in 2D photochromic encoding disks based on the princ… Show more

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