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Atomic fountain clocks are becoming still more stable
They are at present the most accurate clocks in the world: Caesium fountain clocks furnish the second accurate to 15 places after the decimal point. Until they reach this accuracy, caesium fountain clocks, however, need a certain measurement time. view more (2009-03-18)
Synergy between biology and physics drives cell-imaging technology
Developing techniques to image the complex biological systems found at the sub-cellular level has traditionally been hampered by divisions between the academic fields of biology and physics. However, a new interdisciplinary zeal has seen a number of exciting advances in super-resolution imaging technologies. view more (2008-06-02)
'Vortex lattices' may help explain material defects
What do you get when you superimpose a rotating pattern of intersecting laser beams on a spinning cloud of ultracold atoms in a thin gas? Pretty pictures, for one thing-but also a new method that could be used to simulate why and how defects arise in superconductors, important materials that are difficult to study directly. view more (2006-12-26)
Light shines way to diagnosis - The Physics Congress 2003
A research team from the Institute of Photonics at the University of Strathclyde has developed an array of miniature ultra-bright light emitting diodes (LEDs), which they believe could form the basis of a biosensor detection system, allowing doctors to perform thousands of clinical tests all in one go. Team leader Professor Martin Dawson will be... view more... (2003-03-17)
Multitasking nanotechnology
Confocal microscope image of a self-assembled monolayer of a polychlorotriphenyl methyl radical patterned on a quartz surface. This multifunctional molecule behaves as an electroactive switch with optical and magnetic response. view more (2008-07-11)
Small optical force can budge nanoscale objects
With a bit of leverage, Cornell researchers have used a very tiny beam of light with as little as 1 milliwatt of power to move a silicon structure up to 12 nanometers. That's enough to completely switch the optical properties of the structure from opaque to transparent, they reported. view more (2009-11-18)
UIC and Japanese chemists close in on molecular switch
The electronics industry believes that when it comes to circuits, smaller is better -- and many foresee a future where electrical switches and circuits will be as tiny as single molecules. view more (2007-07-11)
Supercontinuum generation and soliton dynamics milestone achieved
A research team led by Fetah Benabid, University of Bath, has observed for the first time the simultaneous emission of two resonant dispersive waves by optical solitons (waves that maintain their shape while traveling at constant speeds). view more (2008-11-21)
World's fastest camera relies on an entirely new type of imaging
Ultrafast, light-sensitive video cameras are needed for observing high-speed events such as shockwaves, communication between living cells, neural activity, laser surgery and elements of blood analysis. view more (2009-04-30)
Scientists get first look at nanotubes inside living animals
Rice University scientists have captured the first optical images of carbon nanotubes inside a living organism. Using fruit flies, the researchers confirmed that a technique developed at Rice -- near-infrared fluorescent imaging -- was capable of detecting DNA-sized nanotubes inside living fruit flies. view more (2007-09-25)
New screening method to help find better biofuel crops
In the face of skyrocketing gasoline prices, ethanol has become a hot commodity along with the corn used to make it. Researchers at the US DOE's Ames Laboratory have developed a method to screen other more cost effective and sustainable crops to produce ethanol. view more (2007-06-06)
High-speed material for data transfer
It doesn’t add up: error-free data rapidly transmitted thousands of kilometers, but within the computer - a bottleneck. “Circuit boards and connectors are the limiting factor in computer processing speeds,” explains Dr. Michael Popall of the Fraunhofer Institute for Silicate Research ISC in Würzburg. With standard... view more... (2002-11-14)
Scientists put the squeeze on electron spins
University of California scientists working at Los Alamos National Laboratory have developed a novel method for controlling and measuring electron spins in semiconductor crystals of GaAs (gallium arsenide). view more (2005-06-16)
Knocking glass fibers into place
The glass fibers used in optical assemblies for telecommunications applications have to be aligned with micrometer precision. A fully automated adjustment robot accomplishes the task with unfaltering exactitude - more precisely, it "knocks" the fiber into place. Most people find threading a needle poses no major feat. It only poses a problem if... view more... (2002-03-05)
Extra-large 'atoms' allow Penn physicists to solve the riddle of why things melt
Physicists at the University of Pennsylvania have experimentally discovered a fundamental principal about how solid materials melt. Their studies have shown explicitly that melting begins at defects within the crystalline structure of solid matter, beginning along the cracks, grain boundaries and dislocations that are present in the otherwise... view more... (2005-07-01)
NYU physicists find way to explore microscopic systems through holographic video
Physicists at New York University have developed a technique to record three-dimensional movies of microscopic systems, such as biological molecules, through holographic video. view more (2009-07-21)
New technologies enhance quantum cryptography
A team of Los Alamos National Laboratory scientists, in collaboration with researchers from the National Institute of Standards and Technology in Boulder, Colo., and Albion College, in Albion, Mich., have achieved quantum key distribution (QKD) at telecommunications industry wavelengths in a 50-kilometer (31 mile) optical fiber. view more (2006-02-03)
Mayo Clinic physicians estimate new, tiny, super-sensitive probe could cut colon polyp removal in half
Based on results of a landmark study, researchers at Mayo Clinic's Florida campus see a future in which virtual biopsies will eliminate the need to remove colon polyps that are not cancerous or will not morph into the disease. view more (2008-10-08)
Engineers develop smallest device to control light, advance silicon technology
An electrical engineer at the University of Texas at Austin has made a laser light blink while passing through a miniaturized silicon chip, a major step toward developing commercially viable optical interconnects for high performance computers and other devices. view more (2006-01-19)
ANALYTICA 2004: Infrared Sensor is Kind to Costs and Environment
The IMM Institut für Mikrotechnik Mainz GmbH has developed an infrared sensor for the quality control of lubricants in machines. With this sensor, oil and its ageing can be monitored directly at the operating machine. Future fields of application are for example real-time monitoring of large motors, particularly in shipping or compressors.... view more... (2004-05-10)
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