A Guiding Light on the Nanoscale

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Light on the Nanoscale
Another important step towards realizing the promise of lightning fast photonic technology has been taken by scientists with the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California at Berkeley. Researchers have demonstrated that semiconductor nanoribbons, single crystals measuring tens of hundreds of microns in length, but only a few hundred or less nanometers in width and thickness (about one ten-millionth of an inch), can serve as "waveguides" for channeling and directing the movement of light through circuitry.


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Air-purifying church windows early nanotechnology

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Stained glass windows that are painted with gold purify the air when they are lit up by sunlight, a team of Queensland University of Technology experts have discovered.

New 'nano-positioners' may have atomic-scale precision

Aug 20, 2008 | User rating: not rated yet
Engineers have created a tiny motorized positioning device that has twice the dexterity of similar devices being developed for applications that include biological sensors and more compact, powerful computer ...

Unregulated nanoparticles from diesel engines inhibit lungs

Aug 20, 2008 | User rating: not rated yet
(PhysOrg.com) -- Diesel engines emit countless carbon nanoparticles into the air, slipping through government regulation and vehicle filters. A new University of Michigan simulation shows that these nanoparticles can get ...

An Unconventional Metal

Aug 20, 2008 | User rating: not rated yet
The semiconductor silicon and the ferromagnet iron are the basis for much of mankind's technology, used in everything from computers to electric motors. In this week's issue of the journal Nature (August ...

Light touch: Controlling the behavior of quantum dots

Aug 19, 2008 | User rating: not rated yet
Researchers from the National Institute of Standards and Technology and the Joint Quantum Institute (JQI), a collaborative center of the University of Maryland and NIST, have reported a new way to fine-tune ...
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