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atoms News
Ultrashort X-rays Rival Synchrotron Beams
ANN ARBOR, Mich., Nov. 17, 2010 — Ultrashort x-ray beams produced at the University of Michigan could one day serve as more sensitive medical diagnostic tools, working like strobe lights to allow researchers to observe chemical reactions that happen in quadrillionths of a second. A composite image of x-ray radiographs of a damsel fly imaged with the new tabletop ultrashort x-ray beam source built at the University of Michigan. (Images: Christopher McGuffy) The researchers used the Hercules high-intensity tabletop laser...
Quantum Signals Converted to Telecom Wavelengths
ATLANTA, Sept. 29, 2010 — Using optically dense, ultracold clouds of rubidium atoms, advances have been made in three key elements needed for quantum information systems – including a technique for converting photons carrying quantum data to wavelengths that can be...
Quantum Particles in Perfect Order
GARCHING, Germany, Aug. 20, 2010 — For the first time a team around Stefan Kuhr and Immanuel Bloch at Max Planck Institute of Quantum (MPQ) has now succeeded in observing — atom by atom, lattice site by lattice site — single-atom resolved images of a highly correlated...
Atom-Photon Pairs Key to Quantum Computers
MUNICH, Germany, Aug. 19, 2010 — In the quest for developing quantum computers that will be vastly superior to present-day computers, physicists have found that strong coupling of quantum bits with light quanta play a pivotal role. An electron microscopical picture of the...
ACS Honors Ultraslow-Motion Pioneer
WASHINGTON, August 13, 2010 — Ahmed H. Zewail, 1999 Chemistry Nobel laureate and Linus Pauling Professor of Chemistry & Professor of Physics at the California Institute of Technology, has been named winner of the 2011 Priestley Medal by the American Chemical Society (ACS)....
Lasers Pin Atoms in Order
INNSBRUCK, Austria, July 29, 2010 — A fundamental physical phenomena, whereby an arbitrarily weak perturbation causes atoms to build an organized structure from an initially unorganized one, has been demonstrated for the first time. Physicists can observe quantum mechanical phase...
Laser Strips, Hollows Out Atoms
MENLO PARK, Calif., June 30, 2010 — The world’s brightest x-ray source has been used to strip neon atoms of all their electrons, and also to create "hollow" atoms, which are devoid of only their innermost electrons. The first published scientific results from the hard x-ray...
Electron Superposition Controlled in Silicon
LONDON, June 23, 2010 — The remarkable ability of an electron to exist in two places at once has been controlled in the most common electronic material — silicon — for the first time. The research from the University of Surrey, University College London,...
Glass Fiber Interface Stores Quantum Info
MAINZ, Germany, May 25, 2010 — A quantum interface based on an ultrathin glass fiber, which connects light particles and atoms, has been realized by physicists at the Johannes Gutenberg University of Mainz. According to the team, this is an essential prerequisite for quantum...
Imaging Photosynthetic Dynamics
GOTHENBURG, Sweden, May 11, 2010 — Researchers at the University of Gothenburg have managed, with the help of an advanced x-ray flash, to photograph the movement of atoms during photosynthesis. Photograph of a photosynthetic reaction taken with an 80-ms x-ray pulse. The...
"Totally new physics" yields first germanium laser
BOSTON – It’s the very first germanium laser capable of emitting wavelengths useful for optical communications. It’s also the first operable at room temperature. And this new laser not only holds promise for optical computing but also proves that...
Crystal-Clear Research
Apr 12, 2010 — Exciting new findings about crystals – on subjects as diverse as diamonds, peptide nanofibers and colloids – could prove useful in science and industry, perhaps leading to new nanoscale constructs and better electronics. Diamond in...
‘Microscope’ to Examine Glass Phase
ST. LOUIS, March 24, 2010 – The National Science Foundation has awarded $1.65 million to a project led by physicist Ken Kelton of Washington University in St. Louis to build an electrostatic levitation chambe...
Peptides do windows
Mar 18, 2010 — Nobody really likes washing windows. And dirt and grime – the kind you find on windows – are the bane of a solar panel’s existence. The good news is that a group of researchers at Tel Aviv University in Israel, which set out originally to find a...
Light Tied in Knots
BRISTOL, GLASGOW & SOUTHAMPTON, UK, Jan. 18, 2010 -- A branch of abstract mathematics inspired by knots that occur in shoelaces and rope has been used to design holograms capable of creating knots in optical vortices.
Filming photons using electrons
PASADENA, Calif. – A new technique that tracks and images nanoscale matter in real time also enables researchers to image electrical fields produced by the interaction of electrons and photons. The method, which uses four-dimensional microscopy, was developed by...
Quantum Entanglement
PASADENA, Calif., Dec. 23, 2009 – A new paradigm that should allow scientists to observe quantum behavior in small mechanical systems has been realized by researchers at California Institute of Technology (Caltech). Their ideas offer a new means of addressing one of the most...
4-D Microscopy Films Photons
PASADENA, Calif., Dec. 22, 2009 – A new 4-D microscopy technique was used to track and image nanoscale matter in real-time, allowing researchers at the California Institute of Technology (Caltech) to image electrical fields produced by the interaction of electrons and photons.
View atoms moving in real time with this microscope
PASADENA, Calif. – It’s one thing for scientists to ponder the nature of materials indirectly – and quite another to watch those materials change before their eyes. The electron microscope has enabled scientists to view atoms in materials, and now Ahmed Zewail and...
Atomic Changes Seen in 4-D
PASADENA, Calif., Nov. 20, 2008 -- A new technique dubbed four-dimensional (4-D) electron microscopy allows the real-time, real-space visualization of fleeting changes in the structure and shape of atomic-scale matter for the first time. The new technique was developed in the...
TEM Probes Between Atoms
HAMILTON, Ontario, Oct. 20, 2008 -- A powerful, $15 million transmission electron microscope (TEM) that has an atomic-level probing capability comparable to the galaxy peering power of the Hubble Space Telescope has been installed in the new Canadian Centre for Electron Microscopy at...
Some Auroral Glow is Polarized
WASHINGTON, April 29, 2008 -- An international team of scientists has detected that some of the glow of Earth's aurora is polarized, an unexpected state for such emissions. Measurements of this newfound polarization in the northern lights may provide scientists with fresh...
Atom-Moving Force Measured
SAN JOSE, Calif., Feb. 22, 2008 -- The force it takes to move individual atoms on a surface has been measured for the first time, an achievement that could mean future nanoelectronic devices for information technology, medicine and data storage will contain integrated circuits...
Team Develops Electron Microscope with 0.5-Å Resolution
Nov 1, 2007 — Although studying how atoms come together to form matter is a central goal of science, it is difficult to study the particles because they measure only about 1 Å. For reference, 500,000 to one million angstroms comprise the width of an average...
Nanotechnologists Win Nobel
STOCKHOLM, Sweden, Oct. 9, 2007 -- Two Europeans were awarded the 2007 Nobel Prize in Physics today for their discovery of a new technology for reading information stored on hard drives. Their research, one of the first applications of nanotechnology, has allowed the shrinking of...
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May 2024
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