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
Brown University researchers have developed a new method of manipulating the polarization of light at terahertz frequencies.
Optics & Photonics
Jul 19, 2017
0
266
The technology of spintronics is based on the intrinsic spin of electrons. In the medium term, it is set to replace electronics as the basis for technical devices. DESY scientist Lars Bocklage has discovered a new way of ...
General Physics
Jul 5, 2017
0
9
The terahertz waves span frequency ranges between the infrared spectrum (used, for example, for night vision) and gigahertz waves (which find their application, among other, in Wi-Fi connections). Terahertz waves allow for ...
Optics & Photonics
Mar 7, 2017
2
22
A group of scientists from TU Wien and ETH Zurich have succeeded in their attempts to generate ultrashort terahertz light pulses. With lengths of just a few picoseconds, these pulses are ideally suited to spectroscopic applications ...
Optics & Photonics
Feb 13, 2017
0
2061
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
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
A novel, highly energy efficient and ultrafast magnetization control scheme is successfully demonstrated by international team of scientists from the Netherlands, Germany, and Russia, as Nature Photonics publishes on 3 October ...
Optics & Photonics
Oct 4, 2016
0
2
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
