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Technology borrowed from electron accelerator and beam physics looks set to push the performance of ultrafast-electron-diffraction-based pump–probe studies of matter.
The combination of high-order harmonic polarimetry and sub-cycle control of electronic trajectories gives insight into the birth of attosecond electronic wave packets in molecules.
A new light-field imaging scheme, employing stacks of transparent graphene photodetectors, has been demonstrated, providing a path to greatly simplify the otherwise complex three-dimensional imaging.
Carbon-dot-based light-emitting diodes with narrowband efficient emission in the deep blue are an attractive candidate for future high-colour-purity flat-panel display and lighting applications.
Quantitative phase gradient images can now be captured in a single shot thanks to the use of two layers of compact, multifunctional dielectric metasurfaces.
Accessing the physics of higher-than-three-dimensional systems is naturally challenging. Researchers have now demonstrated that light dynamics in a one-dimensional array of carefully arranged photonic waveguides mimics the time evolution of particles in high-dimensional lattices.
The ability to create and erase three-dimensional patterns of perovskite quantum dots in glass using a femtosecond laser could bring new opportunities in displays, security marking and data storage.
