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New nanoscale electrical phenomenon discovered

At the scale of the very small, physics can get peculiar. A University of Michigan biomedical engineering professor has discovered a new instance of such a nanoscale phenomenon - one that could lead to faster, less expensive portable diagnostic devices and push back frontiers in building micro-mechanical and lab-on-a-chip devices.

Posted: May 18th, 2010

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Stripes offer clues to superconductivity

New images of iron-based superconductors are providing telltale clues to the origin of superconductivity in a class of ceramic materials known as pnictides. The images reveal that electrons responsible for the superconducting currents in some pnictides tend to flow primarily along the boundaries between the crystal grains that make up the superconductors.

Posted: May 17th, 2010

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High-performance photocatalyst surface-treated with cesium

Researchers at the National Institute of Advanced Industrial Science and Technology (AIST) in Japan have developed a tungsten oxide photocatalyst that provides a significantly higher quantum yield under visible light than conventional photocatalysts.

Posted: May 17th, 2010

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Speeding up broadband spectroscopy

Birgitta Bernhardt, a graduate student at of the Max Planck Institute for Quantum Optics in Munich, will report on a novel use of two frequency comb devices simultaneously to record broadband spectra, which speeds up the task of recording a spectrum by a factor of one million compared to the traditional Fourier transform spectroscopy.

Posted: May 17th, 2010

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Brightest X-ray machine in the world probes molecules

Becoming operational last fall, the first experimental results from the LCLS are starting to appear at scientific meetings. In San Jose, Li Fang of Western Michigan University will report on how the powerful LCLS X-rays can be used to strip electrons away from a nitrogen molecule.

Posted: May 17th, 2010

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Laser cooling of solids for sensitive sensors

Mansoor Sheik-Bahae of the University of New Mexico and colleagues are developing a technique to cool semiconductors loads that would use a vibration-free solid-state technology: laser cooling, which has traditionally been used to lower the temperature of dilute gases but can also cool transparent solids doped with rare-earth ions by kicking out energetic photons.

Posted: May 17th, 2010

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Using light to inscribe nanoscale plastic parts

One of the biggest obstacles in microscopy and in micro-fabrication is the so-called diffraction limit. Now scientists at the University of Maryland have pushed this limit, achieving pattern features with a size as small as one-twentieth of the wavelength.

Posted: May 17th, 2010

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