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atoms News
Radio Waves Cool Cantilever
BOULDER, Colo., Sept. 17, 2007 -- Physicists have used radio waves to dampen the motion of a thin silicon cantilever containing more than a quadrillion atoms, a cooling technique that has the potential to demonstrate quantum behavior in a macroscopic object using smaller and simpler equipment and could lead to the creation of very sensitive detectors.NIST physicists used radio waves to cool this silicon microcantilever, the narrow orange strip across the middle of this colorized micrograph. The cantilever, created by ion...
Measuring Magnetic Fields with Light
Sep 1, 2007 — Researchers at the University of California, Berkeley, have demonstrated that a cloud of atoms, a diode laser and a couple of detectors can measure a magnetic field with a sensitivity of better than 3 nG for a measurement time of 1 s. Potentially,...
Lehigh Professor Wins Top Prize for Glass Science
Jul 13, 2007 — Himanshu Jain, who first compared the movements of atoms in glass to the wiggling of jellyfish in water, received the top prize for glass research this month. Jain, director of the International Materials Institute for New Functionalities in Glass...
Study Urges Nano Oversight
WASHINGTON, May 23, 2007 -- Although the general public continues to know little to nothing about nanotechnology -- the manipulation of matter on an atomic scale -- the number of consumer products containing some aspect of it has now surpassed 450 and is increasingly rapidly,...
Plans Developed for Lensless 'Ultimate Microscope'
SHEFFIELD, England, March 14, 2007 -- Scientists have developed an innovative way to take images of atoms in living cells without using a lens. They now plan to use the technique to develop the ultimate x-ray microscope, which could be used to take high-resolution 3-D images of any...
Image Storage, but Not Without Delay
Feb 1, 2007 — Slow and steady really does win, according to University of Rochester researchers. The group slowed images carried on photon pulses in a hot gas of atoms and then showed that the image information was preserved. As described in the Jan. 26 issue of...
Ultrashort Light Pulses Generated
UPTON, N.Y., Jan. 22, 2007 -- Using a titanium:sapphire laser to control the pulse duration of light from a free electron laser, researchers have developed a new technique that generates extremely short light pulses, something they said could be used in the next generation of...
Mechanical Motion 'Spins' Atoms in a Gas
GAITHERSBURG, Md., Dec. 11, 2006 -- For the first time, scientists have used mechanical motion to make atoms in a gas "spin." The technique eventually might be used in high-performance magnetic sensors, to enable power-efficient chip-scale atomic devices such as clocks, or serve as...
Optical Atomic Clock Has Most Precise 'Ticks' Ever
BOULDER, Colo., Dec. 1, 2006 -- Using an ultrastable laser to manipulate strontium atoms trapped in a "lattice" of light, scientists at the National Institute of Standards and Technology (NIST) and the University of Colorado at Boulder have demonstrated the capability to produce...
Graphene Discovery Leads to Top Physics Prize
MANCHESTER, England, Oct. 23, 2006 -- A discovery that could lead to computers being made from one-atom-thick sheets of carbon has netted a British scientist one of England's top physics prizes. Professor Andre Geim of the University of Manchester School of Physics and Astronomy has...
New Telescope Findings Shake Up Galaxy Formation Theories
BOULDER, Colo., Aug. 15, 2006 -- A heavy form of hydrogen created just moments after the Big Bang has been found to exist in larger quantities than expected in the Milky Way, a finding that could radically alter theories about star and galaxy formation, according to a new...
Controls Found to Gold Nanocatalysis
ATLANTA, Aug. 9, 2006 -- A recent discovery that the catalytic activity of gold nanoclusters can be tuned could eventually lead to advances in nanocatalysis that lower the cost of making materials ranging from plastics to fertilizers. Researchers at the Georgia...
Germanium 'Sponge' Shows Promise in Photonics
EAST LANSING, Mich., & LOS ANGELES, June 29, 2006 -- Researchers have known for years that porous silicon has different properties than crystalline silicon but both work well in microelectronics. Now two research groups have discovered ways to make another semiconductor used in microelectronics --...
Nanowires Grown to Power Tiny Lasers, LEDs
GAITHERSBURG, Md., May 30, 2006 -- The nano world is getting brighter, thanks to newly "grown" nanowires made of semiconductor materials that are being used to make prototype lasers and LEDs with emission apertures roughly 100 nanometers in diameter, or about 50 times narrower...
Ultrafast Nanoworld Events Clocked in Nanoseconds
MADISON, Wis., May 22, 2006 -- As scientists and engineers build devices at smaller and smaller scales, grasping the dynamics of how materials behave when they are subjected to electrical signals, sound and other manipulations has proven to be beyond the reach of standard...
'Gold Cage' Analog to Buckyball Found
RICHLAND, Wash., May 16, 2006 – Scientists have uncovered a class of gold atom clusters that are the first known metallic hollow equivalents of the famous hollow carbon fullerenes known as buckyballs. The researchers believe that what they call “hollow golden cages” can be used to...
Scientists Unlock Secrets of Crystal Formation
MINNEAPOLIS, April 19, 2006 -- Using some of the most advanced microscopes available, a team of researchers has discovered some clues as to how zeolite crystals -- porous minerals used as filters and purifiers -- form. The knowledge may allow scientists to create zeolites with...
NIST Atomic Clock Uses Yb 'Pancakes'
Mar 27, 2006 — GAITHERSBURG, Md., March 27, 2006 -- Scientists at the National Institute of Standards and Technology (NIST) working with Russian colleagues said they have significantly improved the design of optical atomic clocks to become more stable and accurate...
NIST Atomic Clock Uses Ytterbium 'Pancakes'
Mar 27, 2006 — GAITHERSBURG, Md., March 27, 2006 -- Scientists at the National Institute of Standards and Technology (NIST) working with Russian colleagues said they have significantly improved the design of optical atomic clocks to become more stable and accurate...
Engineers Chart Semiconductors at Atomic Level
Aug 15, 2005 — MADISON, Wisc., Aug. 15 -- Spanning fewer than 1000 atoms, the electronic devices on semiconductor chips have become so miniscule they defy most efforts to characterize them. Now, for the first time, engineers have demonstrated a way to image these...
Adaptive Optics Reveals Details on Galaxy Collisions
Apr 1, 2005 — The dynamic interaction of galaxies is believed to play a fundamental role in stellar evolution. The compression created in interstellar gas as two galaxies collide can cause shock waves that trigger the formation of stars composed of a different...
UV Spectroscopy Detects Martian Nightglow
Apr 1, 2005 — When atmospheres settle down for the night, they glow as photodissociated atoms stream from dayside to night-side and combine in the dark. Scientists analyze this effect, called nightglow, because it reveals facts about atmospheric composition and...
OSA Recognizes Achievements
Sep 1, 2004 — Based in Washington, the Optical Society of America has bestowed its annual distinction awards upon 20 individuals for their commitment, initiative and creativity in the optics field. The prizes will be presented during the society's annual meeting...
Optics Center to Build New Laser Lab
Jul 26, 2004 — EUGENE, Ore., July 26 -- A $510,500 grant from the M.J. Murdock Charitable Trust will help scientists at the University of Oregon's Center for Optics reach a new level in the quest to manipulate light and matter at the atomic level. The grant, plus...
Simulation Reveals Ablation Mechanisms
Feb 1, 2003 — To better understand laser ablation, researchers at the University of Montreal have developed a novel method to simulate thermodynamic trajectories of groups of atoms in a solid. The behavior of the atoms reveals the instabilities that result in the...
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May 2024
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