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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Millimeter-wave (mmWave) wireless technology promises to support high-bandwidth content at speeds exceeding 10 gigabits per second—a thousand times today's current mobile phone download speeds—but with that promise comes ...
Telecom
Jun 11, 2015
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41
Light can come in many frequencies, only a small fraction of which can be seen by humans. Between the invisible low-frequency radio waves used by cell phones and the high frequencies associated with infrared light lies a ...
General Physics
Apr 22, 2015
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46
A team of Columbia Engineering researchers has invented a technology—full-duplex radio integrated circuits (ICs)—that can be implemented in nanoscale CMOS to enable simultaneous transmission and reception at the same ...
Telecom
Mar 13, 2015
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A frequency comb source is a light source with a spectrum containing thousands of laser lines. The development of these sources has been revolutionary for fundamental science. It has allowed the construction of a link between ...
Optics & Photonics
Mar 10, 2015
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18
In the visible spectrum, Jupiter is a bright, star-like point in the night sky. Viewing it with the naked eye, it would be easy to confuse it with a star except for the fact that it doesn't twinkle. At radio frequencies ...
Space Exploration
Sep 10, 2014
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0
Scientists have found that two-dimensional (2D) nanostructures with asymmetric design enable a new quantum mechanism, triggering the emission of tunable light at terahertz frequencies—with unprecedented efficiency.
General Physics
Jun 18, 2014
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Researchers from the University of Twente have developed an antenna that can put an end to a malfunction. Developing such an antenna has been possible for some time, but its production was too expensive. Postgraduate student ...
Engineering
May 23, 2014
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A device that essentially listens for light waves could help open up the last frontier of the electromagnetic spectrum—the terahertz range.
Optics & Photonics
May 19, 2014
3
0
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Providing secure wireless connections and improving the efficiency of communication devices could be another application for graphene, as demonstrated by scientists at Queen Mary University of London and the Cambridge Graphene ...
Nanomaterials
Feb 19, 2014
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