A small piece of paper sticks to an electrically charged plastic ruler. The principle of this simple classroom physics experiment is applied at the microscopic scale by so-called optical tweezers to get the likes of polystyrene ...
May 08, 2013
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Researchers at the U.S. Naval Research Laboratory have successfully demonstrated pulse tailoring, producing a time varying focal spot size known as 'focal zooming' on the world's largest operating krypton ...
Mar 20, 2013
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A technique to create the shortest X-ray pulses ever made is proposed in Physical Review Letters. The capability would generate a deeper understanding of how medicines interact within the body and of catalytic processes in new ...
Mar 13, 2013
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(Phys.org) —In January, the last of 150 magnet girders was installed in the storage ring of the National Synchrotron Light Source II (NSLS-II), capping off a tremendous yearlong effort in which 843 magnets ...
Mar 07, 2013
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(Phys.org)—Accelerating a free electron with a laser has been a longtime goal of solid-state physicists. David Cline, a distinguished professor in the UCLA Department of Physics and Astronomy, and Xiaoping ...
Feb 28, 2013
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(Phys.org)—The way electrons move within and between molecules, transferring energy as they go, plays an important role in many chemical and biological processes, such as the conversion of sunlight to energy ...
Jan 31, 2013
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(Phys.org)—Copper is one of the world's most widely used metals. Now researchers at the University of Dundee have found that blackening copper using industry-standard lasers could make it even more adaptable and efficient.
Jan 16, 2013
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With the US national debt standing at more than $16 trillion, the White House says it absolutely cannot spend $850 quadrillion on a "Star Wars"-inspired "Death Star" super-weapon.
Jan 13, 2013
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Why are efficient and affordable solar cells so highly coveted? Volume. The amount of solar energy lighting up Earth's land mass every year is nearly 3,000 times the total amount of annual human energy use. ...
Jan 07, 2013
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A laser capable of working in the terahertz range – that of long-wavelength light from the far infrared to 1 millimetre – enables the 'fingerprint' of, say, a drug to be examined better than can be done ...
Dec 19, 2012
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(Phys.org)—This morning CERN completed the first LHC proton run. The remarkable first three-year run of the world's most powerful particle accelerator was crowned by a new performance milestone. The space between proton ...
Dec 17, 2012
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The relaxation of high-energy carriers (electrons and holes) in colloidal nanoplatelets have been measured by researchers in the Nanophotonics Group at the Center for Nanoscale Materials, working with colleague ...
Dec 07, 2012
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A jet of X-rays from a supermassive black hole 12.4 billion light years from Earth has been detected by NASA's Chandra X-ray Observatory. This is the most distant X-ray jet ever observed and gives astronomers ...
Nov 28, 2012
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(Phys.org)—Two teams working independently have succeeded in entangling a single electron spin with a single photon in a solid-state platform. Both teams describe their process and results in papers they've ...
Nov 15, 2012
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(Phys.org)—Techniques for the manipulation of matter at the nano scale are a step further ahead with the publication of new results from a UTS research group.
Nov 12, 2012
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