A new, extremely thin kind of light detectors was created at Vienna University of Technology. Two very different technologies were combined for the first time: metamaterials and quantum cascade structures.
General Physics
Mar 27, 2014
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Most lasers produce coherent light, meaning that the light waves are perfectly synchronized with each other. Spatially coherent waves, however, can interfere with one another and produce speckles in an image. With this in ...
Optics & Photonics
Feb 26, 2014
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Randomly arranged items usually have poor optical properties. The rough—or random—surface of a frosted-glass window, for example, obscures the view of an object. The optical industry therefore expends considerable effort ...
Optics & Photonics
Jan 15, 2014
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Terahertz radiation has many applications—but high intensity terahertz radiation sources are hard to build. A team of researchers at TU Vienna has now managed to create a new kind of quantum cascade laser with an output ...
Optics & Photonics
Oct 30, 2013
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To keep drinking water clean, experts are constantly monitoring our supply to check it for contaminants. Now laser technology will give them a helping hand: a new system automatically analyzes water samples at the waterworks ...
Engineering
Oct 22, 2013
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(Phys.org)—Quantum physicists from ETH Zurich have discovered special properties in a laser, thanks to which portable devices can be built to analyse gases and liquids accurately and reliably in the future.
Quantum Physics
Dec 14, 2012
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In micro electronics heat often causes problems and engineers have to put a lot of technical effort into cooling, for example micro chips, to dissipate heat that is generated during operation. Austrian physicists have now ...
General Physics
Nov 13, 2012
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(Phys.org)—When it comes to applications like standoff sensing—using lasers to detect gas, explosives, or other materials from a safe distance—the laser's strength is of the utmost importance. A stronger and purer beam ...
General Physics
Aug 24, 2012
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(PhysOrg.com) -- Identifying chemicals from a distance could take a step forward with the introduction of a two-laser system being developed at the Department of Energy's Oak Ridge National Laboratory.
General Physics
Mar 22, 2012
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(PhysOrg.com) -- Researchers at Rice University are using carbon nanotubes as the critical component of a robust terahertz polarizer that could accelerate the development of new security and communication devices, sensors ...
Nanophysics
Jan 30, 2012
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