News tagged with electrical field

Researchers develop light transistor

TU Vienna has managed to turn the oscillation direction of beams of light – simply by applying an electrical current to a special material. This way, a transistor can be built that functions with light instead of electrical ...

dateJul 08, 2013 in General Physics
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Quantum dots light up under strain

Semiconductor nanocrystals, or quantum dots, are tiny, nanometer-sized particles with the ability to absorb light and re-emit it with well-defined colors. With low-cost fabrication, long-term stability and a wide palette ...

dateSep 23, 2015 in Nanophysics
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Minutest absolute magnetic field measurement

Every measurement is potentially prone to systematic error. The more sensitive the measurement method, the more important it is to make sure it is also accurate. This is key for example in measuring magnetic fields in state-of-the-art ...

dateDec 03, 2015 in General Physics
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Swarm heads for new heights

(Phys.org) —Some tricky manoeuvres are now under way to steer ESA's trio of Swarm satellites into their respective orbits so that they can start delivering the best-ever survey of our magnetic field.

dateFeb 07, 2014 in Space Exploration
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