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Discovery opens door to low-cost 'negative refraction,' new products and industries
Date:2/23/2012

said. They were just published in Physica Status Solidi A, in work supported by the National Science Foundation.

"We haven't yet used this approach to achieve negative refraction, but the findings suggest it should work for that," he said. "That will be one goal of continuing research. No one had thought of using amorphous metals for this purpose. They didn't think it could be that simple."

Negative refraction, Cowell said, is a brilliant idea. It is based on the equations developed by the young physicist and mathematician Maxwell more than 150 years ago work for which he is revered, along with Isaac Newton and Albert Einstein, as one of the greatest physicists who ever lived. Einstein kept a photograph of Maxwell on his office wall.

But for generations, theory is about all that it was. Just in the past decade have researchers finally figured out how to create materials of any type that can achieve negative refraction. A way to accomplish that at low cost for the commercial marketplace could be of considerable importance, scientists say.

One application of particular interest is a "super lens," a device that might provide light magnification at levels that dwarf any existing technology. Many applications are possible in electronics manufacturing, lithography, biomedicine, insulating coatings, heat transfer, space applications, and perhaps new approaches to optical computing and energy harvesting.

The discovery of amorphous metamaterials is an outgrowth of recent findings at OSU about ways to create a metal-insulator-metal, or MIM diode, also of commercial significance. The OSU research is one of the latest advances in "dispersion engineering," or the control of electromagnetic radiation.


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Contact: Bill Cowell
cowellb@onid.orst.edu
541-758-2895
Oregon State University
Source:Eurekalert

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