| Popis: |
Information storage and security are the building blocks of the information age. Optical information storage is a low-cost, robust, and high-capacity storage technique. Discovering new optical information storage media and technique with beyond binary capacity and enhanced security is in demand. Here we demonstrate a beyond-binary, "burn after read" and rewritable multiplexing optical information and encryption method via Ce:YAG trapping states. We find that the thermo-luminescence (TL) intensity of Ce:YAG trapping states is writing light power dependent, enabling multi-gray-level information storage and encoding. We present a new strategy to encode multiplexing information in a single pixel, increasing the storage capability. Meanwhile, the "burn after read" feature protects the data from secondary leakage. This method has wide applications in data storage, anti-counterfeiting, and encryption. |
