New research offers clearer insight into how phase transitions unfold at the atomic scale in real materials. When ice turns into water, the change happens almost instantly. Once the melting ...

Abstract: We propose and demonstrate a photonic approach to generating low-phase-noise ultra-wide arbitrary waveforms based on a wideband injection-locked optoelectronic oscillator (OEO). A seed ...

Abstract: Recent studies on a reconfigurable intelligent surface (RIS)-assisted satellite–aerial–terrestrial integrated network have been focused on improving the received signal quality of the ...