In the quest to harvest light for electronics, the focal point is the moment when photons—light particles—encounter electrons, those negatively-charged subatomic particles that form the basis of our modern electronic ...
Nanophysics
May 13, 2016
0
26
(Phys.org) —Where in powerful jets of distant active galaxies—the mightiest and most energetic objects known—are the violent outbursts of high energy gamma-ray emission produced? Very close to the central supermassive ...
Astronomy
May 23, 2014
4
0
Gamma-ray bursts, short and intense flashes of energetic radiation coming from outer space, are the brightest explosions in the universe. As gamma rays are blocked by the atmosphere, the bursts were discovered accidentally ...
Astronomy
Aug 1, 2019
73
221
Researchers have discovered a highly efficient way to produce high energy photon beams. The obtained energy is a billion times higher than the energy of photons in visible light. These high-intensity gamma rays significantly ...
Optics & Photonics
Oct 20, 2017
2
77
By reproducing the complexity of the cosmos through unprecedented simulations, a new study highlights the importance of the possible behaviour of very high-energy photons. In their journey through intergalactic magnetic fields, ...
General Physics
Sep 8, 2017
0
17
It takes a very, very clean room to build a detector sensitive enough to see the light from the beginning of the universe.
General Physics
Oct 18, 2016
0
0
(Phys.org) —Usually, when we think of a device that has defects, it means it's time to throw it out. However, for several types of materials, imperfections are what actually make them function in the first place. Finding ...
Nanophysics
May 7, 2014
0
0
In a new publication from Opto-Electronic Advances, authors from the Laser Engineering Group in the School of Engineering at the University of Liverpool, Liverpool, United Kingdom, discuss two-photon absorption and stimulated ...
Optics & Photonics
Feb 17, 2022
0
6
A multi-disciplinary team of scientists at the Naval Research Laboratory has discovered a way to tailor nanostructures that could result in low-cost, high efficiency solar cells. The research appears in the August 10, 2011 ...
Nanophysics
Oct 12, 2011
0
0
