An off-the-wall new study by Brown University researchers shows that terahertz frequency data links can bounce around a room without dropping too much data. The results are good news for the feasibility of future terahertz ...
Optics & Photonics
Feb 6, 2018
0
163
Berry curvature may not be the most well-known scientific concept, but to many physicists, its direct measurement is something akin to a holy grail.
General Physics
Nov 22, 2017
5
826
Optical frequency combs are widely-used, high-precision tools for measuring and detecting different frequencies—a.k.a. colors—of light. Unlike conventional lasers, which emit a single frequency, these lasers emit multiple ...
Optics & Photonics
Oct 17, 2017
0
804
Multiplexing, the ability to send multiple signals through a single channel, is a fundamental feature of any voice or data communication system. An international research team has demonstrated for the first time a method ...
Optics & Photonics
Aug 10, 2017
2
5436
Terahertz radiation—the band of the electromagnetic spectrum between microwaves and visible light—has promising applications in medical and industrial imaging and chemical detection, among other uses.
Optics & Photonics
Aug 8, 2017
0
564
A research team led by UCLA electrical engineers has developed a new technique to control the polarization state of a laser that could lead to a new class of powerful, high-quality lasers for use in medical imaging, chemical ...
Optics & Photonics
Apr 20, 2017
0
1042
Electromagnetic pulses lasting one millionth of a millionth of a second may hold the key to advances in medical imaging, communications and drug development. But the pulses, called terahertz waves, have long required elaborate ...
Optics & Photonics
Feb 9, 2017
1
4925
Ultrashort bursts of electrons have several important applications in scientific imaging, but producing them has typically required a costly, power-hungry apparatus about the size of a car.
Optics & Photonics
Nov 22, 2016
1
1549
A research team led by UCLA electrical engineers has developed an artificial composite material to control of higher-frequency electromagnetic waves, such as those in the terahertz and far-infrared frequencies.
Condensed Matter
Oct 24, 2016
1
1883
Humans have harnessed large portions of the electromagnetic spectrum for diverse technologies, from X-rays to radios, but a chunk of that spectrum has remained largely out of reach. This is known as the terahertz gap, located ...
Nanophysics
Oct 3, 2016
0
615
