News tagged with atomic spectroscopy
Atomic clock comparison via data highways
(Phys.org) -- Optical atomic clocks measure time with unprecedented accuracy. However, it is the ability to compare clocks with one another that makes them applicable for high-precision tests in fundamental ...
Apr 27, 2012 |
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Cu-BTC proves redox capable, opens new doors for catalysis and gas storage
What holds the surface area of several football fields in the mass equivalent of a paper clip? The answer to this question has many names and performs duties ranging from catalysis to gas storage: the metal ...
Apr 25, 2012 |
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'Anti-atomic fingerprint': Physicists manipulate anti-hydrogen atoms for the first time (Update)
The ALPHA collaboration at CERN in Geneva has scored another coup on the antimatter front by performing the first-ever spectroscopic measurements of the internal state of the antihydrogen atom. Their results ...
Mar 07, 2012 |
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The interplay of dancing electrons
Negative ions play an important role in everything from how our bodies function to the structure of the universe. Scientists from the University of Gothenburg, Sweden, have now developed a new method that makes it possible ...
Nov 29, 2011 |
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Physicists find charge separation in a molecule consisting of two identical atoms
Physicists from the University of Stuttgart show the first experimental proof of a molecule consisting of two identical atoms that exhibits a permanent electric dipole moment. This observation contradicts ...
Nov 25, 2011 |
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How atoms behave: Characteristics of microstructural avalanches
(PhysOrg.com) -- Investigating how atoms move and rearrange themselves is fundamental to our understanding of the behavior of materials, in particular efforts aimed at engineering materials with enhanced functionality. ...
Nov 18, 2011 |
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In nitrogenase - enzyme critical for life, X-ray emission cracks mystery atom
Like a shadowy character just hidden from view, a mystery atom in the middle of a complex enzyme called nitrogenase had long hindered scientists' ability to study the enzyme fully.
Nov 17, 2011 |
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Nanoparticle imaging: A resonant improvement
Raman spectroscopy is a powerful technique for analyzing atomic structure based on the inelastic scatter of light from molecules, with diverse applications including medical imaging and chemical sensing. Researchers ...
Nanotechnology / Bio & Medicine
Oct 28, 2011 |
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Eye on ionization: Visualizing and controlling bound electron dynamics in strong laser fields
(PhysOrg.com) -- Subatomic events can be remarkably counterintuitive. Such is the case in theoretical physics when, under certain specific conditions, atoms exposed to intense infrared laser pulses remain ...
Oct 19, 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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Laser spectroscopy exposes organization of water molecules under model membrane surfaces
The behavior of water molecules as they contact biological substances has long puzzled scientists. The first few layers of interfacial water can display complex arrangements that distinctly influence biochemical ...
Chemistry / Analytical Chemistry
Sep 27, 2010 |
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'Slow light' on a chip holds promise for optical communications
A tiny optical device built into a silicon chip has achieved the slowest light propagation on a chip to date, reducing the speed of light by a factor of 1,200 in a study reported in Nature Photonics (published online Septem ...
Sep 05, 2010 |
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Dancing in the dark: scientists shed new light on protein-salt interactions
To study nanostructures in real environments, Berkeley Lab scientists have combined theoretical and experimental approaches to glimpse into a protein’s interaction with simple salts in water. Enabled by x-ray absorption ...
Nanotechnology / Bio & Medicine
Aug 12, 2010 |
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How shape-memory materials remember
X-ray studies and fundamental calculations are helping physicists gain molecular level insight into the workings of some magnetic shape-memory materials, which change shape under the influence magnetic fields.
Apr 26, 2010 |
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Nanostructure of 5,000-year-old mummy skin reveals insight into mummification process
(PhysOrg.com) -- Using cutting-edge microscopy techniques, researchers have gained insight into how human mummies can be extremely well-preserved for thousands of years. A team of scientists from Germany and ...
Nanotechnology / Bio & Medicine
Apr 20, 2010 |
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