Navigation Links
Researchers bridge the 'terahertz gap' with new tunable metamaterial
Date:4/15/2008

CHESTNUT HILL, Mass. (4/15/08) A frequency-agile metamaterial that for the first time can be tuned over a range of frequencies in the so-called terahertz gap has been engineered by a team of researchers from Boston College, Los Alamos National Laboratory and Boston University.

The team incorporated semiconducting materials in critical regions of tiny elements in this case metallic split-ring resonators that interact with light in order to tune metamaterials beyond their fixed point on the electromagnetic spectrum, an advance that opens these novel devices to a broader array of uses, according to findings published in the online version of the journal Nature Photonics.

Metamaterials no longer need to be constructed only out of metallic components, said Boston College Physicist Willie J. Padilla, the project leader. What weve shown is that one can take the exotic properties of metamaterials and combine them with the unique prosperities of natural materials to form a hybrid that yields superior performance.

Padilla and BC graduate student David Shrekenhamer, along with Hou-Tong Chen, John F. OHara, Abul K Azad and Antoinette J. Tayler of Los Alamos National Laboratory, and Boston Universitys Richard D. Averitt formed a single layer of metamaterial and semiconductor that allowed the team to tune terahertz resonance across a range of frequencies in the far-infrared spectrum.

The teams first-generation device achieved 20 percent tuning of the terahertz resonance to lower frequencies those in the far-infrared region addressing the critical issue of narrow band response typical of all metamaterial designs to date.

Constructed on the micron-scale, metamaterials are composites that use unique metallic contours in order to produce responses to light waves, giving each metamaterial its own unique properties beyond the elements of the actual materials in use.

Within the past decade, researchers have sought ways to si
'/>"/>

Contact: Ed Hayward
ed.hayward@bc.edu
617-552-4826
Boston College
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. NIST, Army researchers pave the way for anthrax spore standards
2. Researchers mimic bacteria to produce magnetic nanoparticles
3. Vitamin D and calcium influence cell death in the colon, researchers find
4. UD researchers discover novel gene toggles in worlds top food crop
5. Pitt and University of Chicago researchers uncover process behind heart muscle contraction
6. Researchers close in on origins of main ingredient of Alzheimers plaques
7. War between the sexes begins before twins birth, TAU researchers say
8. Researchers see structure of open nicotinic acetylcholine ion channels
9. Environmental enrichment can reduce cocaine use, researchers find
10. Fabled Freshman 15 pound gain more often only 5, report researchers
11. Synthetic molecules may be less expensive alternative to therapeutic antibodies, researchers find
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/15/2014)... to bacterial pneumonia in female mice to an enzyme ... are naturally more resistant to respiratory infections than males. ... increased resistance to bacterial pneumonia in female mice is ... They also show that this enzyme is ultimately activated ... , The team, lead by Professor Lester Kobzik at ...
(Date:10/15/2014)... , Oct. 15, 2014   Neurotechnology , ... announced the availability of the VeriLook Surveillance ... 3.0 provides real-time biometric face identification using live ... surveillance cameras. The new version not only identifies ... people from objects while they are moving through ...
(Date:10/14/2014)... 14, 2014)—It,s been millions of years since T. ... led by Ohio University scientists is breathing life back ... through dinosaur snouts. The research has important implications for ... but to enhance the sense of smell and cool ... said Ohio University doctoral student Jason Bourke, lead author ...
Breaking Biology News(10 mins):VeriLook Surveillance 3.0 SDK Identifies Faces and Moving Objects, Differentiates Pedestrians from Other Moving Objects in Video Surveillance Systems 2VeriLook Surveillance 3.0 SDK Identifies Faces and Moving Objects, Differentiates Pedestrians from Other Moving Objects in Video Surveillance Systems 3Dinosaur breathing study shows that noses enhanced smelling and cooled brain 2Dinosaur breathing study shows that noses enhanced smelling and cooled brain 3
... College students often spend their free time thinking about ... taking it to the next level. They,re using genetic ... in wine that,s been shown to reduce cancer and ... be entered in the International Genetically Engineered Machine (iGEM) ...
... Infectious Diseases (NAID), one of the National Institutes of ... Washington (UW) to use systems biology approaches to comprehensively ... networks that are induced or altered during the course ... program will be led by Dr. Michael Katze, UW ...
... October 16, 2008 Two new articles examine the ... health disparities. The studies, published in American Journal ... of hypertension and cardiovascular disease present in African Americans ... that these low birth weights may be a result ...
Cached Biology News:Better beer: College team creating anticancer brew 2Better beer: College team creating anticancer brew 3NIAID funds studies of how SARS and bird flu evade antiviral responses 2Racial disparities in cardiovascular health linked to birth weight, slavery 2Racial disparities in cardiovascular health linked to birth weight, slavery 3
(Date:10/22/2014)... Diego, CA (PRWEB) October 22, 2014 ... balances from Sartorius, A & D Weighing, Rice ... Sartorius CPA Semi-Micro Balance . The Sartorius CPA ... for an affordable high-quality, precise, and user-friendly laboratory ... manufacturing of laboratory equipment, their laboratory balances are ...
(Date:10/22/2014)... Hill, SC (PRWEB) October 22, 2014 ... expansion of its cardiovascular pharmacogenetics menu, which enables ... patient outcomes. With PCLS’s evidence-based results, healthcare ... needs and optimize their therapy, while minimizing risks ... In the U.S., according to the FDA [1] ...
(Date:10/22/2014)... --  Synthetic Biologics, Inc. (NYSE MKT: SYN), a ... and diseases, announced today that the U.S. Patent and ... a composition of matter patent application that covers the ... This is Synthetic Biologics, first allowed patent application directly ... the Company,s extensive C. difficile patent estate. ...
(Date:10/22/2014)... , Oct. 22, 2014 Nuvilex, Inc. ... approximately 400 million people worldwide are living with diabetes, ... people by 2030.  The global market for diabetes treatments ... approximately 330,000 people worldwide died from pancreatic cancer.  Pancreatic ... due to cancer in the United States ...
Breaking Biology Technology:Pipette.com Launches the Addition of Sartorius CPA Semi-Micro Balance to Their Product Portfolio with Special Promotional Pricing 2Pipette.com Launches the Addition of Sartorius CPA Semi-Micro Balance to Their Product Portfolio with Special Promotional Pricing 3PCLS Announces Expansion of Cardiovascular Pharmacogenetic Testing Menu 2PCLS Announces Expansion of Cardiovascular Pharmacogenetic Testing Menu 3Synthetic Biologics Announces Allowance of Key U.S. Composition of Matter Patent for C. difficile Program 2Synthetic Biologics Announces Allowance of Key U.S. Composition of Matter Patent for C. difficile Program 3Synthetic Biologics Announces Allowance of Key U.S. Composition of Matter Patent for C. difficile Program 4Nuvilex Brief Analyst Report: Thinking Outside the Box by BrokerBank Securities, Inc. 2
... consecutive year, the City of Madison received recognition ... in the country. , ,In its 2006 Digital Survey ... research and advisory institute on information technology and best practices ... top user of technology in its 125,000-249,999 population category. Madison ...
... Wauwatosa, Wis. - A Medical College of Wisconsin ... work to isolate, grow, and identify a new type of ... to have the potential for diversification. , ,The readily-available adult ... , ,According to the Medical College, the team recently ...
... symposium presented last week at the Milwaukee School ... impressive as their messages. , ,Mary Glass of ... is championing the issue for Milwaukee neighborhoods, delivered a ... everyone the critical opportunity to take advantage of what ...
Cached Biology Technology:Medical College team seeks stem cell patent 2Medical College team seeks stem cell patent 3Handicapping Milwaukee's wireless initiative 2Handicapping Milwaukee's wireless initiative 3Handicapping Milwaukee's wireless initiative 4Handicapping Milwaukee's wireless initiative 5
... SYBR Safe DNA gel stain was developed ... than ethidium bromide for staining DNA in agarose ... only less mutagenic than ethidium bromide but SYBR ... of ethidium bromide. SYBR Safe stain comes as ...
... Service enables scientists who do not have access ... to have their biological samples tested for the ... easy as 1-2-3 Chose the analytes ... from the S&S antibody menu. Send your ...
... I nucleic acid gel stain is an ... bright fluorescence when bound to dsDNA and low ... dsDNA in gels using laser scanners or standard ... has also found uses in capillary electrophoresis, real-time ...
... stain has bright fluorescence when bound to dsDNA ... for detecting dsDNA in gels using laser scanners ... nucleic gel acid stain has also found ... bandshift assays. One mL stains 100 minigels. A ...
Biology Products: