Using plasma to control microwaves for beaming direct energy toward a specific point is explored for their durability in high-energy electric fields and their reconfigurable structure. High power microwave beams, similar ...
Plasma Physics
Apr 7, 2020
1
133
Photonic cavities are an essential part of many modern optical devices, from laser pointers to microwave ovens. Just as we can store water in a tank and create standing waves on the surface of the water, we can confine light ...
Optics & Photonics
Mar 25, 2020
0
180
Imagine a wire with a thickness roughly one-hundred thousand times smaller than a human hair and only visible with the world's most powerful microscopes. They can come in many varieties, including semiconductors, insulators ...
Superconductivity
Mar 3, 2020
2
1014
A team of researchers at Stanford University has developed a theoretical way to cool down heated objects. In their paper published in the journal Physical Review Letters, the group describes their study of heat radiation ...
To develop futuristic technologies like quantum computers, scientists will need to find ways to control photons, the basic particles of light, just as precisely as they can already control electrons, the basic particles in ...
Quantum Physics
Feb 19, 2020
3
1873
Researchers at the University of Cambridge have developed a novel technique for generating single photons, by moving single electrons in a specially designed light-emitting diode (LED). This technique, reported in the journal ...
General Physics
Feb 14, 2020
0
1854
A team of researchers at The University of Texas at Austin and the University of California, Riverside have found a way to produce a long-hypothesized phenomenon—the transfer of energy between silicon and organic, carbon-based ...
Materials Science
Dec 2, 2019
0
5543
Semiconductors convert energy from photons (light) into an electron current. However, some photons carry too much energy for the material to absorb. These photons produce "hot electrons," and the excess energy of these electrons ...
General Physics
Nov 15, 2019
0
367
When a current is applied to a thin layer of tungsten diselenide, it begins to glow in a highly unusual fashion. In addition to ordinary light, which other semiconductor materials can emit, tungsten diselenide also produces ...
Quantum Physics
Oct 16, 2019
0
105
When a guitar string is plucked, it vibrates as any vibrating object would, rising and falling like a wave, as the laws of classical physics predict. But under the laws of quantum mechanics, which describe the way physics ...
Quantum Physics
Oct 7, 2019
4
1571
