When stars explode as supernovas, they produce shock waves in the plasma surrounding them. So powerful are these shock waves, they can act as particle accelerators that blast streams of particles, called cosmic rays, out ...
General Physics
Jun 8, 2020
3
683
When the American physicist Arthur Compton discovered that light waves behave like particles in 1922, and could knock electrons out of atoms during an impact experiment, it was a milestone for quantum mechanics. Five years ...
Quantum Physics
Apr 15, 2020
1
1722
For years physicists have been trying to decipher the electronic details of high-temperature superconductors. These materials could revolutionize energy transmission and electronics because of their ability to carry electric ...
Superconductivity
Apr 1, 2020
1
413
Any device that sends out a Wi-Fi signal also emits terahertz waves —electromagnetic waves with a frequency somewhere between microwaves and infrared light. These high-frequency radiation waves, known as "T-rays," are also ...
General Physics
Mar 30, 2020
18
3435
Researchers from the Department of Energy's SLAC National Accelerator Laboratory have made a promising new advance for the lab's high-speed "electron camera" that could allow them to "film" tiny, ultrafast motions of protons ...
Optics & Photonics
Mar 6, 2020
0
249
Researchers at the National Institute of Standards and Technology (NIST) and their collaborators have developed a way to retrofit the transmission electron microscope—a long-standing scientific workhorse for making crisp ...
Optics & Photonics
Feb 24, 2020
0
77
The operational speed of semiconductors in various electronic and optoelectronic devices is limited to several gigahertz (a billion oscillations per second). This constrains the upper limit of the operational speed of computing. ...
Optics & Photonics
Feb 21, 2020
0
85
Scientists at Tokyo Institute of Technology (Tokyo Tech) demonstrate the first visible-light photoelectrochemical system for water splitting using TiO2 enhanced with an earth-abundant material—cobalt. The proposed approach ...
Materials Science
Feb 18, 2020
2
64
A team of physicists has discovered an electrical detection method for terahertz electromagnetic waves, which are extremely difficult to detect. The discovery could help miniaturize the detection equipment on microchips and ...
General Physics
Jan 27, 2020
1
5277
A European team of researchers including physicists from the University of Konstanz has found a way of transporting electrons at times below the femtosecond range by manipulating them with light. This could have major implications ...
General Physics
Dec 23, 2019
1
3565
