Researchers have developed a technique to fabricate high-performance optical microstructures using lithium niobate, opening the door to ultra-efficient integrated photonic circuits, quantum photonics, microwave-to-optical conversion and more.
Studies by a research team utilizing high-brightness x-rays provide important insight into a key question that has long puzzled scientists, namely, why do nanoparticle gels take so long to form after a quench even though the constituent nanoparticles are rapidly diffusing through the suspension?
Scientists made a remarkable discovery: Particles known as 'Weyl fermions' were discovered in materials with strong interaction between electrons. Just like light particles, they have no mass but nonetheless they move extremely slowly.
By harnessing the unusual electrical properties of 2D materials such as few-layer black phosphorus and topological Weyl/Dirac semimetal thin films, researchers designed a versatile all-electric-controlled valley filter and demonstrated, for the first time, a concrete working design of valleytronic logic gate capable of performing the full set of two-input Boolean logics.