Lasers that emit ultrashort pulses of light are critical components of technologies, such as communications and industrial processing, and have been central to fundamental Nobel Prize-winning research in physics. Although first invented in the 1960s, the exact mechanism whereby lasers actually produce such bright flashes of light has remained elusive. It has not been previously […]
New Quantum Materials Offer Novel Route To 3-D Electronic Devices
Researchers have shown how the principles of general relativity open the door to novel electronic applications such as a three-dimensional electron lens and electronic invisibility devices. In a new study funded by the Academy of Finland, Aalto University researchers Alex Westström and Teemu Ojanen propose a method to go beyond special relativity and simulate Einstein’s […]
Graphene Forged Into Three-Dimensional Shapes
Researchers from Finland and Taiwan have discovered how graphene, a single-atom-thin layer of carbon, can be forged into three-dimensional objects by using laser light. A striking illustration was provided when the researchers fabricated a pyramid with a height of 60 nm, which is about 200 times larger than the thickness of a graphene sheet. The […]