News tagged with pulse electrons
Watching an electron being born
Atomic processes take place on extremely short time scales. Measurements at the Vienna University of Technology (TU Vienna) can now visualize these processes.
May 15, 2012 |
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Billard game in an atom: Physicists trace the double ionization of argon atoms on attosecond time scales
(Phys.org) -- When an intense laser pulse interacts with an atom it generates agitation on the micro scale. A rather likely outcome of this interaction is single ionization, where one electron is ejected from ...
May 08, 2012 |
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Generating first-ever controlled ultrafast radiation, using a plasma
To observe ultrarapid phenomena such as the motion of electrons within matter, researchers need sources capable of producing extremely fast and energetic light radiation. Although devices capable of emitting ...
Apr 05, 2012 |
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Light pulses take a quantum walk
Tourists who drift aimlessly during a sightseeing tour are moving randomly - just like electrons that move from one atom to the next. To obtain a better understanding of these random motions it is often useful ...
Mar 21, 2012 |
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Solar storms join floods, terrorism as risks to UK
(AP) -- Britain has added volcanoes and solar storms to floods, flu and terrorism on a list of threats to national security.
Mar 18, 2012 |
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First-ever images of atoms moving in a molecule captured
Using a new ultrafast camera, researchers have recorded the first real-time image of two atoms vibrating in a molecule.
Mar 07, 2012 |
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An electrical switch for magnetic current
(PhysOrg.com) -- A new mechanism will make it possible to switch data storage in the future. Researchers at the Max Planck Institute of Microstructure Physics in Halle use a short electric pulse to change ...
Mar 01, 2012 |
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World's best metronome enables slow-motion pictures of atoms and molecules
(PhysOrg.com) -- The world's most accurate metronome keeps stroke to an incredible 10 quintillionth of a second. The device enables slow-motion pictures from the world of molecules and atoms, scientists from the Center for ...
Jan 17, 2012 |
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In the quantum world, diamonds can communicate with each other
Researchers working at the Clarendon Laboratory at the University of Oxford in England have managed to get one small diamond to communicate with another small diamond utilizing "quantum entanglement," one ...
Dec 02, 2011 |
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Laser heating -- new light cast on electrons heated to several billion degrees
A new class of high power lasers can effectively accelerate particles like electrons and ions with very intense, short laser pulses. This has attracted the interest of researchers around the globe, working ...
Nov 21, 2011 |
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Bright lights, small systems: Molecular differentiation using free-electron lasers
(PhysOrg.com) -- Double-core-hole (DCH) states – in which two electrons are ejected from their positions, creating vacancies – occurring at different atomic sites are very sensitive to the chemical ...
Oct 28, 2011 |
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Watching electrons in molecules
(PhysOrg.com) -- A research group led by ETH Zurich has now, for the first time, visualized the motion of electrons during a chemical reaction. The new findings in the experiment are of fundamental importance ...
Oct 14, 2011 |
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White laser pulses with precisely tailored waveform enable control of electrons in microcosm
(PhysOrg.com) -- An expedition through the fast-paced microscopic world of atoms reveals electrons that spin around at enormous speeds and have gigantic forces are acting on them. Monitoring the ultrafast ...
Sep 09, 2011 |
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North Korea upgrades jamming devices: report
North Korea is upgrading jamming devices to disrupt South Korean military communications, Yonhap news agency said Tuesday, citing a defence ministry report.
Sep 06, 2011 |
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Lightwave electronics at sharp metal tips
(PhysOrg.com) -- Scientists at the Max Planck Institute of Quantum Optics control for the first time the emission of electrons from metal tips with femtosecond lasers alone.
Jul 07, 2011 |
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