News tagged with laser pulses
Measuring distances in microseconds
Nov 05, 2009 |
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(PhysOrg.com) -- Standard laser devices are fast enough for measuring the size of a room, but they need to be faster for outdoor mobile applications. Researchers have brought these scanners up to speed -- ...
Lasers put a shine on metals
Nov 03, 2009 |
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(PhysOrg.com) -- Polishing metal surfaces is a demanding but monotonous task, and it is difficult to find qualified young specialists. Polishing machines do not represent an adequate alternative because they ...
Science Begins at the World's Most Powerful X-ray Laser (w/ Video)
Nov 02, 2009 |
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(PhysOrg.com) -- The first experiments are now underway using the world's most powerful X-ray laser, the Linac Coherent Light Source, located at the Department of Energy's SLAC National Accelerator Laboratory. ...
Researchers use trident laser to accelerate protons to record energies
Nov 02, 2009 |
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An international team of physicists at Los Alamos National Laboratory has succeeded in using intense laser light to accelerate protons to energies never before achieved. Using this technique, scientists can ...
Golden Nanotubes Detect Tumor Cells, Map Sentinel Lymph Nodes
Nanotechnology / Bio & Medicine
Sep 24, 2009 |
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(PhysOrg.com) -- Biomedical researchers at the University of Arkansas in Fayetteville and the University of Arkansas for Medical Sciences (UAMS) in Little Rock have developed a special contrast-imaging agent made of gold-coated ...
Lasers generate underwater sound
Sep 04, 2009 |
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Scientists at the Naval Research Laboratory (NRL) are developing a new technology for use in underwater acoustics. The new technology uses flashes of laser light to remotely create underwater sound. The new ...
Laser pulses control single electrons in complex molecules
Sep 01, 2009 |
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Predatory fish are well aware of the problem: In a swarm of small fish it is hard to isolate prey. A similar situation can be found in the microcosm of atoms and molecules, whose behavior is influenced by "swarms" of electrons. ...
Regular Light Bulbs Made Super-Efficient with Ultra-Fast Laser
May 29, 2009 |
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(PhysOrg.com) -- An ultra-powerful laser can turn regular incandescent light bulbs into power-sippers, say optics researchers at the University of Rochester. The process could make a light as bright as a 100-watt ...
K-State's fast laser research and theory building on Einsten's work by timing electrons emissions
May 21, 2009 |
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Ultrafast laser research at Kansas State University has allowed physicists to build on Nobel Prize-winning work in photo-electronics by none other than Albert Einstein.
Bouncing atoms may be the key to the future of gravimetry
Apr 27, 2009 |
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(PhysOrg.com) -- When studying cold atoms, scientists often use magnetic or optical traps to keep the atoms in place. However, in some cases experimentalists want to study free atoms, avoiding the effects of a trap. "One ...
Coke Bottle Quantum Physics
Apr 16, 2009 |
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(PhysOrg.com) -- Don't be fooled by the collection of empty soda bottles in James Cryan's office at SLAC National Accelerator Laboratory. Cryan isn't a caffeine fiend—the cola bottles are for science. As a ...
Polarizers may enhance remote chemical detection
Chemistry / Analytical Chemistry
Mar 11, 2009 |
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Chemists can analyze the composition of a suspected bomb -- without actually touching and possibly detonating it -- using a technique called laser-induced breakdown spectroscopy, or LIBS. The tool is also commonly used for ...
Engineers ride 'rogue' laser waves to build better light sources
Mar 05, 2009 |
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A freak wave at sea is a terrifying sight. Seven stories tall, wildly unpredictable, and incredibly destructive, such waves have been known to emerge from calm waters and swallow ships whole. But rogue waves ...
De-multiplexing to the max: 640 Gbits/second
Feb 02, 2009 |
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Sliced light is how we communicate now. Millions of phone calls and cable television shows per second are dispatched through fibers in the form of digital zeros and ones formed by chopping laser pulses into bits. This slicing ...
Physicists steer electrons with laser pulses: Method could be used to create custom-made chemical compounds
Nov 13, 2008 |
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Theoretical physicist Uwe Thumm and his colleagues Feng He and Andreas Becker not only work with some of the smallest molecules in the universe, but they now have found a way to control the motion of the molecules' building ...
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