Multidimensional Multiplexing Nested Optical Encryption of Programmable Holographic Structured Light Based on Photoalignment Liquid Crystal Elements (Laser Photonics Rev. 19(23)/2025)

Multidimensional Nested Optical Encryption In Research Article e01882, Jihong Zheng and co-workers propose a highly integrated optical encryption scheme utilizing a photoalignment liquid crystal element. By multiplexing polarization, wavelength, and spatial position, it achieves eight-channel encryption within a multi-layered nested architecture that combines physical keys with digital algorithms, thereby significantly enhancing both information capacity and decryption complexity. The system offers high integration and information security, providing a scalable, dynamic tunability solution for next-generation information security.