Navigation Links
Trapping T-rays for better security scanners
Date:7/11/2013

Medical diagnostic and security scanners with higher sensitivity could result from University of Adelaide research into detecting T-rays (terahertz waves).

Published in the journal Advanced Optical Materials, the researchers describe a novel structure which traps terahertz waves in tiny (micro-scale) holes to produce much higher contrast imaging than currently possible.

Terahertz waves, which are electromagnetic waves with frequencies between those used for mobile phone communications and for optical fibre communications, are used for some airport body scanners and other security scanners to see through packages and clothes. They are also capable of distinguishing malignant from healthy tissues for cancer detection.

"This work takes an unconventional path to detecting terahertz waves," says Dr Withawat Withayachumnankul, project leader and ARC Postdoctoral Fellow in the University's School of Electrical and Electronic Engineering.

Dr Withayachumnankul has worked with RMIT University in Melbourne and Albert Ludwigs University of Freiburg in Germany to produce the new structure using metamaterials (materials that show non-natural properties with the use of carefully engineered structures).

The structure is made of tiny (micro-scale) cavities etched into the surface of silicon. Terahertz waves that hit the structure are captured and compressed inside the cavities.

"By tailoring the silicon properties through the use of micro-structures (the size of a cross-section of human hair) it is possible to trap and confine the waves in a volume much smaller than the wavelength of the terahertz waves," says Dr Withayachumnankul.

"This significantly improves the efficiency of terahertz devices such as scanners and will have broad impact on biomedicine and homeland security, where better contrast means more accurate identification."

RMIT team leader Dr Sharath Sriram says: "We needed to carefully
'/>"/>

Contact: Dr. Withawat Withayachumnankul
withawat@eleceng.adelaide.edu.au
61-402-946-480
University of Adelaide
Source:Eurekalert

Page: 1 2

Related biology news :

1. ARS scientists test improved stink bug trapping methods
2. New methods for better purification of wastewater
3. Breakthroughs in Chikungunya research from A*STAR spell new hope for better treatment and protection
4. UNH researchers find African farmers need better climate change data to improve farming practices
5. Giant squids giant eyes: The better to see hungry whales with
6. Improved loblolly pines better for the environment, study finds
7. Fish larvae find the reef by orienting: The earlier the better
8. Intensive kidney dialysis indicates better survival rates than conventional dialysis
9. Modern hybrid corn makes better use of nitrogen, study shows
10. Bigger gorillas better at attracting mates and raising young
11. Better housing conditions for zebrafish could improve research results
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/22/2014)... computer science and engineering professor with an expertise in ... Science Foundation grant worth more than $600,000 to develop ... fly., Heng Huang, an associate professor, will lead the ... Arlington Computer Science and Engineering department. Scientists are compiling ... large number of genes involved in fruit fly development ...
(Date:7/22/2014)... 2014) New research from the Monell Center reveals ... can increase airway inflammation in asthmatics for at least ... that expectations can play in health-related outcomes. , "Asthmatics ... expect that an odor is harmful, our bodies react ... lead author Cristina Jan, PhD, a Monell physiologist. "Both ...
(Date:7/22/2014)... not be good for the average steak, but it ... prepare to survive Alaska,s winter cold. , "Alaska wood ... a steak does in your freezer and the frog ... shape than the steak," said Don Larson, University of ... recent paper demonstrating that freeze tolerance in Alaska wood ...
Breaking Biology News(10 mins):UT Arlington big data team wins $600,000 NSF grant to build gene expression database 2In asthma, it's not just what you smell, but what you think you smell 2In asthma, it's not just what you smell, but what you think you smell 3Alaska frogs reach record lows in extreme temperature survival 2Alaska frogs reach record lows in extreme temperature survival 3
... Laval’s Faculty of Medicine have discovered that a ... a pathological reaction in skin cells. Guillaume Morissette, ... about the mode of action of this substance—called ... of Dermatology. , DMAE (2-dimethylaminoethanol) is used in ...
... 15 percent of couples of childbearing age struggle with the ... hope with Cornell researchers' identification of a mutation in a ... the first time that a dominant mutation that leads specifically ... say they can now look for similar mutations in the ...
... made a breakthrough by detecting the electrical equivalent of ... a step closer to both seeing the ‘heartbeat?of a ... , To stay alive, individual biological cells must ... membranes. This flow produces an electrical current that could, ...
Cached Biology News:Anti-wrinkle compound causes pathological reaction in skin cells 2Researchers find gene mutation that causes infertility in male mice 2A new study of living cells could revolutionize the way we test drugs 2
(Date:7/22/2014)... og SHENZHEN , Kina, ... Co., LTD, (BGI Tech), et datterselskab af BGI, ... en ny human whole exome-sekvenseringstjeneste baseret på Complete ... højt anset i branchen for at levere patenterede ... af alle typer varianter, blev købt af BGI ...
(Date:7/22/2014)... , July 22, 2014 Hussey Copper ... MD-Cu 29 antimicrobial copper announces Pullman Regional Hospital,s ... first EPA-registered antimicrobial solid touch surface, at a nominal ... of MRSA, E-coli and other bacteria within 2 hours of ... protecting against bacteria and infectious diseases in its facilities. ...
(Date:7/22/2014)... Quorum Review IRB, the industry leader in central ... called Quick Step™ . The offering went live on ... industry’s need for seamless study start-up with a large volume ... planning 50 or more North American investigator sites, as well ... count of 80 or more. Qualifying studies may also enroll ...
(Date:7/22/2014)... Biofeedback – When a behavioral problem ... medication to best treat it can become a matter ... electroencephalography (EEG) can help predict which medicine will offer ... adverse drug events. , The article “Medication Prediction ... issue of the journal Biofeedback offers evidence that quantitative ...
Breaking Biology Technology:BGI Tech lancerer Human Whole Exome-sekvenseringstjeneste på Complete Genomics avancerede platform 2Pullman Regional Hospital changes more than 1,100 touch points to Hussey Copper's MD-Cu29 antimicrobial copper to help protect against bacteria 2Pullman Regional Hospital changes more than 1,100 touch points to Hussey Copper's MD-Cu29 antimicrobial copper to help protect against bacteria 3Quorum Review IRB Launches New Quick Step™ Service for Large Clinical Trials 2Quorum Review IRB Launches New Quick Step™ Service for Large Clinical Trials 3Analyzing Brain Patterns with EEG Can Help Predict Effective Use of Medication 2Analyzing Brain Patterns with EEG Can Help Predict Effective Use of Medication 3
... , , LAKE MARY, Fla., ... Inc. (NasdaqCM: NGBF) today announced that on August 26, 2009, ... staff indicating that, based on the Company,s stockholders equity as ... the quarter ended June 30, 2009, the Company is no ...
... , BALTIMORE, Md., Aug. 27 Champions Biotechnology, ... development of advanced preclinical platforms and tumor specific data to ... results for the fiscal year ended April 30, 2009. Full ... Company,s Form 10-K available at www.championsbiotechnology.com. , , ...
... , , MURRIETA, Calif., Aug. ... announce the expansion of its US operations. Copan Diagnostics, Inc. ... plastic transfer pipet and additional medical device manufacturing operations to ... addition of blow molding machinery and filling and packing equipment ...
Cached Biology Technology:New Generation Biofuels Receives NASDAQ Notice of Noncompliance with Continued Listing Requirements 2Champions Biotechnology Reports Fiscal 2009 Full-Year Financial Results 2Champions Biotechnology Reports Fiscal 2009 Full-Year Financial Results 3Champions Biotechnology Reports Fiscal 2009 Full-Year Financial Results 4Champions Biotechnology Reports Fiscal 2009 Full-Year Financial Results 5Copan Announces Multimillion Expansion for US Pipet Manufacturing Operations 2
... stain has bright fluorescence when bound to dsDNA ... for detecting dsDNA in gels using laser scanners ... nucleic acid stain has also found uses ... bandshift assays. A 500 µL unit size (S-7563) ...
... cross-linking techniques are defined by the author ... Wong. This valuable hardcover guide includes hundreds ... application references. More than 300 pages detail ... conjugate preparation from selection and design ...
... protein separation by two-dimensional electrophoresis (2D-PAGE), ... package from Bio-Rad and protein identification ... to meet customers requirements regarding experimental ... format of the results permanent contact ...
... reagents for immune complex disruption (ICD) of ... using a combination of low pH and ... transferred to microplate wells which are coated ... to HIV-1 p24. The immobilized monoclonal antibody ...
Biology Products: