Scientists believe they have addressed a long-standing problem troubling scientists and engineers for more than 35 years: How to prevent the tip of a scanning tunneling microscope from crashing into the surface of a material during imaging or lithography.
Scientists have successfully measured the distortions in 2D materials at microscopic level, which means it is now possible to observe precisely (point for point) how the properties of a material may be altered as a result of a simple distortion.
Producing the perfect color images we need and love often requires multiple, heavy lenses so that each color focuses in exactly the same plane. Now engineers have developed a new theory that solves the problem using a single thin lens comprised of gradient index materials and metasurface layers to properly direct the light.
Scientists have theoretically predicted few-layer alpha-Tellurium to be a promising elementary semiconductor with extremely high carrier mobility, layer-tunable bandgap, strong light absorption, large strength and good environmental stability.
Researchers have demonstrated, using a super resolution microscopic technique, how to follow chemical reactions taking place in very small volumes. The method of analysis is the first to make it potentially possible to observe reactions not only inside living cells, but even within individual organelles, such as cell nuclei.