All articles tagged with #ultrafast lasers
Researchers at the University of Arizona have achieved a breakthrough by capturing quantum uncertainty in real time using ultrafast squeezed light, which could revolutionize secure communication, quantum sensing, and various scientific applications by enabling more precise measurements and enhanced data security.
Scientists used ultrafast high-intensity lasers and X-ray pulses to superheat gold to 14 times its melting point without melting, challenging previous theories about solid stability and demonstrating a new method for measuring extreme temperatures in hot systems, reaching up to 19,000 Kelvin.
Researchers at the University of Kansas' Ultrafast Laser Lab have observed the ballistic movement of electrons in graphene, a promising material for next-generation electronic devices. By using ultrafast lasers, the researchers were able to trace the movement of electrons in real-time, revealing that electrons in graphene can move ballistically, similar to cars on a freeway or ballistic missiles through the air. This discovery could lead to breakthroughs in governing electrons in semiconductors, potentially resulting in faster, more powerful, and more energy-efficient electronic devices.
Scientists have demonstrated the breakdown of the Born-Oppenheimer approximation, a long-standing hypothesis in quantum mechanics, by revealing the close relationship between the dynamics of nuclei and electrons in molecules. The discovery, made using ultrafast lasers and X-rays, could have implications for the design of molecules used in solar energy conversion, energy production, and quantum information science. The team of scientists studied the spin-vibronic effect, where changes in nuclear motion affect electron motion, leading to inter-system crossing. By tracking the motion of nuclei and electrons in real time, they observed how the spin-vibronic effect drives inter-system crossing, potentially opening up new ways to control and exploit the electronic and spin properties of molecules.