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

CORVALLIS, Ore. Researchers at Oregon State University have discovered a way to make a low-cost material that might accomplish negative refraction of light and other radiation a goal first theorized in 1861 by a giant of science, Scottish physicist James Maxwell, that has still eluded wide practical use.

Other materials can do this but they are based on costly, complex crystalline materials. A low-cost way that yields the same result will have extraordinary possibilities, experts say ranging from a "super lens" to energy harvesting, machine vision or "stealth" coatings for seeming invisibility.

Entire new products and industries could be possible. The findings have just been published and a patent has been applied for on the technology.

The new approach uses ultra-thin, ultra-smooth, all-amorphous laminates, essentially a layered glass that has no crystal structure. It is, the researchers say, a "very high-tech sandwich."

The goal is to make radiation bend opposite to the way it does when passing through any naturally occurring material. This is possible in theory, as Maxwell penciled out during the American Civil War. In reality, it's been pretty difficult to do.

"To accomplish the task of negative refraction, these metamaterials have to be absolutely perfect, just flawless," said Bill Cowell, a doctoral candidate in the OSU School of Electrical Engineering and Computer Science. "Everyone thought the only way to do that was with perfectly crystalline materials, which are quite expensive to produce and aren't very practical for large-area commercial application.

"We now know these materials may not need to be that exotic."

The new study has explained how easy-to-produce laminate materials, created with technology similar to that used to produce a flat panel television, should work for this purpose. The findings outline the component materials and the theoretical behavior of the laminates, Cowell 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.


'/>"/>

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

Related biology technology :

1. Affitech and Omeros Enter Into Antibody Discovery and Development Agreement
2. Concentric Named Professional Agency of Record for Discovery Labs SURFAXIN(R)
3. ChanTest to Highlight the Worlds Largest Catalog of Ion Channel-Expressing Cell Lines and Discovery Services at Ion Channel Targets, Booth 5
4. Biotechnology & Drug Discovery Markets Push Up Demand for Lab Automation Products, According to a New Report by Global Industry Analysts
5. Assay Designs(TM), Inc. and the Spinal Muscular Atrophy Foundation Announce Collaboration To Accelerate the Discovery of New Therapeutics for Spinal Muscular Atrophy (SMA)
6. ChanTest to Highlight the Worlds Largest Catalog of Ion Channel-Expressing Cell Lines and Discovery Services at Assays & Cellular Targets Conference, Booth 11
7. Affitech Announces Second Milestone in Roche Antibody Discovery Collaboration
8. The Lilly TB Drug Discovery Initiative Begins Work on New Compounds to Fill Early-Stage TB Drug Pipeline
9. Update: The Lilly TB Drug Discovery Initiative Begins Work on New Compounds to Fill Early-Stage TB Drug Pipeline
10. deCODE Discovery Sheds Light on Risk of the Most Common Form of Skin Cancer
11. Global Drug Discovery Technologies Market to Exceed $57 Billion by 2012, According to a New Report by Global Industry Analysts
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/18/2017)... , Jan. 18, 2017 /PRNewswire/ - SQI ... sciences and diagnostics company that develops and commercializes ... ("SQI" or the "Company"), today announced that ... Inc. ("Kingsdale"), has resigned from its Board of ... changes to securities regulations that have limited both ...
(Date:1/17/2017)... ... January 17, 2017 , ... ... Factor (RF) to its VALIDATE® SP2 calibration verification / linearity test kit. VALIDATE® ... serum base. Each VALIDATE® SP2 kit is prepared using the CLSI recommended “equal ...
(Date:1/17/2017)... The Global Implantable Biomaterials Market is ... 7.5% over the next decade to reach approximately ... trends that the market is witnessing include increasing ... transplant surgeries and medical implants and technological advancements. ... into immunomodulatory biomaterials, natural, polymers, hydrogels and ceramics. ...
(Date:1/17/2017)... -- Roka Bioscience, Inc. (NASDAQ: ROKA ), a molecular ... of foodborne pathogens today announced the appointment of Mary Duseau ... , the Company,s President and CEO since 2009, who will assume ... changes are effective today. In addition, Ms. Duseau will ... ...
Breaking Biology Technology:
(Date:1/4/2017)... 2017  CES 2017 – Valencell , the ... announced the launch of two new versions of ... biometric sensor modules that incorporate the best of ... expertise. The two new designs include Benchmark BE2.0, ... and Benchmark BW2.0, a 2-LED version of its ...
(Date:12/22/2016)... -- As part of its longstanding mission to improve genetic literacy ... released its latest children,s book, titled The One ... topics of inheritance and variation of traits that are part ... school classrooms in the US. The book ... Killoran , whose previous book with 23andMe, You ...
(Date:12/20/2016)... The rising popularity of mobility services ... stoking significant interest in keyless access systems. Following ... energy (BLE), biometrics and near-field communication (NFC) are ... wireless technologies in the automotive industry. This evolution ... systems opens the market to specialist companies such ...
Breaking Biology News(10 mins):