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
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Research into a new type of laser will dramatically improve future devices used for sensing and in communications, according to scientists at the University.
Optics & Photonics
Oct 28, 2013
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(PhysOrg.com) -- A major breakthrough in remote wave sensing by a team of Rensselaer Polytechnic Institute researchers opens the way for detecting hidden explosives, chemical, biological agents and illegal drugs from a distance ...
Optics & Photonics
Jul 11, 2010
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Quantum physicists rely on quantum sensing as a highly attractive method to access spectral regions and detect photons (tiny packets of light) that are generally technically challenging. They can gather sample information ...
Terahertz radiation—the band of electromagnetic radiation between microwaves and visible light—has promising applications in security and medical diagnostics, but such devices will require the development of compact, ...
Optics & Photonics
Jun 13, 2016
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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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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
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804
A team of researchers at Durham University has found a way to use long-wavelength terahertz radiation to produce video with a high frame rate. In their paper published in the journal Physical Review Letters, the group describes ...
Terahertz radiation, the no-man's land of the electromagnetic spectrum, has long stymied researchers. Optical technologies can finagle light in the shorter-wavelength visible and infrared range, while electromagnetic techniques ...
General Physics
Aug 4, 2015
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People use electromagnetic energy every day … watching television, listening to the radio, popping corn with a microwave, taking an X-ray or using a cellphone. This energy travels in the form of waves, which are widely ...
Nanomaterials
May 2, 2012
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