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
For decades, scientists have speculated about the origin of the electromagnetic radiation emitted from celestial regions that host black holes and neutron stars—the most mysterious objects in the universe.
Astronomy
Nov 27, 2019
17
1396
A quasi-particle that travels along the interface of a metal and dielectric material may be the solution to problems caused by shrinking electronic components, according to an international team of engineers.
General Physics
Sep 27, 2019
7
595
Researchers at the University of Illinois at Urbana-Champaign have replicated one of the most well-known electromagnetic effects in physics, the Hall Effect, using radio waves (photons) instead of electric current (electrons). ...
General Physics
Sep 12, 2019
0
3039
A UK-German team of astronomers has conducted observations of a peculiar radio magnetar known as XTE J1810–197, which turned on in December 2018 after an almost decade-long period of quiescence. Results of these observations ...
Rice University researchers have discovered a fundamentally different form of light-matter interaction in their experiments with gold nanoparticles.
Nanophysics
Nov 30, 2018
26
1554
For the first time, engineers at Caltech have created a stable ring of plasma in open air—essentially capturing lightning in a bottle, but without the bottle.
Plasma Physics
Nov 15, 2017
12
4742
Terahertz radiation—the band of electromagnetic radiation between microwaves and visible light—has promising applications in security and medical diagnostics, but such devices will require the development of compact, ...
Optics & Photonics
Jun 13, 2016
0
1396
A team of scientists has successfully measured particles of light being "squeezed", in an experiment that had been written off in physics textbooks as impossible to observe.
Quantum Physics
Aug 31, 2015
1
3065
A team of researchers from the University of Cambridge have unravelled one of the mysteries of electromagnetism, which could enable the design of antennas small enough to be integrated into an electronic chip. These ultra-small ...
General Physics
Apr 8, 2015
59
3712
