Plasmon‐Assisted Self‐Encrypted All‐Optical Memory (adv. Funct. Mater. 2/2023)

Optical Responsive Nanomaterials In article number 2208561, Zhang, Zheng, and co-workers report that a self-encrypted all-optical memory with ultrahigh switching contrast is realized in Y2O3:Eu3+-Au. All-optical information revisable writing, reading, encryption and re-writing are realized by a change of light power. This study not only provides insight into the unique thermal response of the plasmon resonance in the composite structure but also offers good candidates for self-encrypted binary information storage.