上海理工大学顾敏院士团队研发世界上首个超宽带光学全息技术 - 2019年12月11日

Imagine a scenario like this: You and your friend receive the same encrypted holographic file. Using different “light keys” to decode the file, you see Michael Jackson singing and doing the moonwalk while your friend sees Elvis Presley's rock and roll.
Holographic technology developed by a research team at the University of Shanghai for Science and Technology led by professor Min Gu, a foreign member of the Chinese Academy of Engineering, can make that a reality.
Fang Xinyuan, a member of Gu’s team, said it had employed twist light beams with orbital angular momentum as an information carrier in optical holography.