Once the preferred weapon of B-movie madmen and space-fiction heroes alike, the laser—a device that generates an intense beam of coherent electromagnetic radiation by stimulating the emission of photons from excited atoms ...
Optics & Photonics
Oct 31, 2016
1
14
As humans, we sniff out different scents and aromas using chemical receptors in our noses. In technological gas detection, however, there are a whole host of other methods available. One such method is to use infrared lasers, ...
Optics & Photonics
Oct 24, 2016
0
504
A team of UCF researchers has produced the most efficient quantum cascade laser ever designed - and done it in a way that makes the lasers easier to manufacture.
Optics & Photonics
Oct 17, 2016
2
1669
Creating Terahertz radiation isn't easy, but it is extremely useful. It can, for example, be used for building chemical sensors to detect certain substances. For this purpose, however, the Terahertz light has to fulfil two ...
Optics & Photonics
Sep 30, 2016
0
13
Researchers have nearly doubled the continuous output power of a type of laser, called a terahertz quantum cascade laser, with potential applications in medical imaging, airport security and more. Increasing the continuous ...
Optics & Photonics
Jul 26, 2016
1
67
Terahertz spectroscopy, which uses the band of electromagnetic radiation between microwaves and infrared light, is a promising security technology because it can extract the spectroscopic "fingerprints" of a wide range of ...
Optics & Photonics
May 23, 2016
1
1195
A team of researchers from across the country, led by Alexander Spott, University of California, Santa Barbara, USA, have built the first quantum cascade laser on silicon. The advance may have applications that span from ...
Optics & Photonics
Apr 20, 2016
0
1547
Current terahertz sources are large, multi-component systems that sometimes require complex vacuum systems, external pump lasers, and even cryogenic cooling. The unwieldy devices are heavy, expensive, and hard to transport, ...
General Physics
Mar 28, 2016
0
16
Researchers at the University of Bath, United Kingdom have created a new kind of laser capable of pulsed and continuous mid-infrared (IR) emission between 3.1 and 3.2 microns, a spectral range that has long presented a major ...
Optics & Photonics
Feb 24, 2016
0
1119
Good quality and precision are essential – a dictum that also applies to products from the pharmaceutical and chemical industry. While the quality of chemical products is often still being monitored manually during the ...
Engineering
Jun 1, 2015
0
23
