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Optical data storage is the use of light to write and read information to and from a memory device. Storage can be achieved by using lasers to pattern a surface, such as on a compact disc, or altering the physical properties of a small volume inside a light sensitive material.
Optical encryption is used to protect image data but often struggles with low compression or strict experimental setups. The authors introduce a lensless method that securely encrypts multiple images with high compression and robustness, using smart point spread patterns and compressed sensing algorithms.
By utilizing chiral liquid crystal elastomers with different thicknesses, multiple photonic band control was achieved by mechanical deformation, enabling the proposal of multi-level programmable optical encryption.
Up-conversion charging (UCC) enables rapid, high-resolution optical storage in phosphors, achieving 0.01-second data writing with excellent retention and rewritability. UCC paves the way for advanced optical storage solutions.
On-chip non-volatile optical memories significantly enhance the functionality and energy efficiency of photonic integrated circuits. In this study, the authors present an all-silicon optical memory utilizing the photon avalanche-induced trapping effect, providing a solution readily compatible with silicon photonics.
Reconfigurable MOS memory enables light-controlled synaptic functions. Integrated into LIF neurons, the device demonstrates potential for dynamic firing patterns in response to light stimuli, promising applications in exoplanet detection.
