New hydrogel combines structural color from self-assembled polymer layers with tunable fluorescence for enhanced information security through multistage encryption.
Researchers observed a time crystal on a microscale semiconductor chip oscillating billions of times per second, linking non-linear exciton-polariton dynamics and coherent optomechanics at GHz frequencies.
Physicists' new technique extracts 3D data from a single 2D electron micrograph, allowing rapid nano-scale 3D imaging in most transmission electron microscopes.
