A silicon-based laser that lases up to a record 111°C, with a threshold current density of 200 A/cm2 and an output power exceeding 100 mW at room temperature, has been demonstrated by collaborating researchers from University ...
Optics & Photonics
Sep 29, 2014
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A system to allow air- and ground-based robot vehicles to work together, without GPS signals or expensive sensor devices, is being developed by a team at Yonsei University in Korea. This could be used by unmanned vehicle ...
Engineering
Sep 29, 2014
1
1
Room-temperature bow-tie terahertz detectors have been successfully integrated with focusing optics for the first time. This achievement, from researchers at the Center for Physical Sciences and Technology in Lithuania, not ...
General Physics
Sep 12, 2014
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Much smaller artificial magnetic conductors (AMCs) that can allow for more compact antenna hardware have been created by a team of researchers in the Netherlands and Spain. They have also developed a system to evaluate AMC ...
Engineering
Sep 12, 2014
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Depressed collectors have been used for decades to improve the efficiency of vacuum-electronic based RF power sources by recovering energy from the spent electron beam of an RF source, such as a klystron or inductive output ...
Electronics & Semiconductors
Aug 28, 2014
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Diamagnetic levitation of pyrolitic graphite over a single magnet has been achieved, using commercially available magnetic field domain printing technology. Using this approach, levitation applications, including bearings ...
General Physics
Aug 28, 2014
1
1
The first FitzHugh-Nagumo neuron circuit designed to include noise and exhibit the Ghost Stochastic Resonance effect has been presented by researchers from Université de Bourgogne in France. Their circuit operates according ...
Engineering
Aug 19, 2014
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A loss mechanism that has not been an issue in previous mobile handset antennas will become important for global 4G roaming, according to results of experiments carried out in Aalborg, Denmark.
Telecom
Aug 19, 2014
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A bump circuit with flexible tuning ability that uses 500 times less power and is smaller than previous circuits has been demonstrated by researchers at the University of Tennessee in the US.
Electronics & Semiconductors
Aug 19, 2014
0
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Maturing draw-tower fabrication technology for optical fibre gratings has been used to produce quasi-distributed temperature sensors that could extend the use of RFTA in cancer treatment.
Engineering
Aug 19, 2014
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