Lasers are widely used as high power sources of light operating at a specific frequency. But how does this frequency get selected when a laser is turned on, and how quickly?
Optics & Photonics
Aug 13, 2018
0
61
A mineral discovered in Russia in the 1830s known as a perovskite holds a key to the next step in ultra-high-speed communications and computing.
Optics & Photonics
Nov 6, 2017
0
387
A flexible detector for terahertz frequencies (1000 gigahertz) has been developed by Chalmers researchers using graphene transistors on plastic substrates. It is the first of its kind, and can extend the use of terahertz ...
Nanomaterials
Oct 31, 2017
0
807
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
Researchers at the NUP/UPNA-Public University of Navarre and the Navarre-based company Anteral S.L. have designed a novel system of sensors to improve quality control in the food sector and based on terahertz technology. ...
Analytical Chemistry
Mar 31, 2017
0
7
Researchers at the NUP/UPNA-Public University of Navarre have designed two types of sensors whose innovative technologies obtain information on the water status of a vineyard. The work has been developed by a NUP/UPNA multidisciplinary ...
Engineering
Feb 24, 2017
0
7
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
Scientists from Russia and the U.K. have developed an antenna that can aid in reducing sources of terahertz radiation down to the size of a fingertip. The antenna is a "sandwich" of semiconductor layers combined with quantum ...
Optics & Photonics
Dec 5, 2016
0
83
Terahertz is a new technology in which nondestructive testing of components and surfaces is possible. Until now, these devices and, in particular, the sensor heads have been expensive and unwieldy. Researchers at Fraunhofer ...
Engineering
Apr 6, 2016
0
6
A microchip that filters out unwanted radiation with the help of graphene has been developed by scientists from the EPFL and tested by researchers of the University of Geneva (UNIGE). The invention could be used in future ...
Nanomaterials
Apr 6, 2016
0
119
