Researchers have developed a holographic data storage approach that stores and retrieves information in three dimensions by ...

A new quantum communication method uses the temporal Talbot effect to simplify high-dimensional quantum key distribution.

D metastructures produce programmable structural colors for optical encryption, with a destruction mechanism that permanently erases data after readout.

Researchers created an optical system that encrypts information as a hologram that is scrambled when sent through a small container of liquid and then uses a neural network for decryption. WASHINGTON ...