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:7/31/2014)... bigeye tuna movements in the northwestern Atlantic Ocean led ... Center at the University of Massachusetts Amherst, found among ... range with pronounced north-south movements from Georges Bank to ... off Cape Hatteras southwest of Bermuda for foraging. , ... study one of the most important commercial tuna species ...
(Date:7/31/2014)... Science Foundation (NSF), counters a widely-held scientific view ... instead that certain Arctic lakes store more greenhouse ... , The study, published this week in the ... which occur as permafrost thaws and creates surface ... what was previously frozen land into lakes. , ...
(Date:7/31/2014)... GAINESVILLE, Fla. --- By tracing nearly 3,000 genes ... moths, University of Florida scientists have created an ... to use large-scale, next-generation DNA sequencing. , ... more closely related to small moths than to ... how butterflies evolved. The study also found that ...
Breaking Biology News(10 mins):Study of bigeye tuna in Northwest Atlantic uses new tracking methods 2Study of bigeye tuna in Northwest Atlantic uses new tracking methods 3Certain Arctic lakes store more greenhouse gases than they release 2UF study advances 'DNA revolution,' tells butterflies' evolutionary history 2UF study advances 'DNA revolution,' tells butterflies' evolutionary history 3
... be complete without mosquitoes nipping at exposed skin. Or ... University team may help solve a problem that scientists ... Kun Yan Zhu, professor of entomology, and teammates ... Jianzhen Zhang, a visiting scientist from Shanxi University, China, ...
... Researchers writing in the open access journal BMC ... an adaptation in the blood of Eastern moles which ... moles, burrowing behavior. Kevin Campbell from the ... researchers to study the blood of three underground species ...
... has developed a "lab on a chip" device for ... white blood cells called T cells that are affected ... the test detects the types and levels of inflammatory ... Revzin,s team collaborated with UCLA electrical engineer Prof. Aydogan ...
Cached Biology News:K-State researchers find gene-silencing nanoparticles may put end to pesky summer pest 2Adaptation in mole blood aids tunnelling 2Novel microfluidic HIV test is quick and cheap 2
(Date:7/31/2014)... City, CA (PRWEB) July 31, 2014 ... as consumers, are increasingly searching for food alternatives ... and nutritional benefits. The food ingredient market has ... budding players such as Vital Force Technology (VFT). ... with more than 4,000 energetic patterns, all tested ...
(Date:7/31/2014)... Texas (PRWEB) August 01, 2014 ... and China Polyurethane Resin Industry” is a ... Resin market. The report introduces Polyurethane Resin ... and industry chain structure and industry overview. ... including China’s domestic market as well as ...
(Date:7/31/2014)... BioSpace , the leading life sciences employment and news website, launched ... community in Illinois , Indiana , ... Michigan , Minnesota , Missouri ... Wisconsin . BioMidwest is a leader in ... BioSpace originating in this region in 2013. The life sciences sector in ...
(Date:7/31/2014)... 2014 Nearly 20,000 medical professionals and healthcare ... & Clinical Lab Expo in Chicago ... in diagnostic research and technology that will advance medicine ... As of Wednesday, July 30, more than 19,500 attendees ... Clinical Lab Expo, with more than 10,000 of these ...
Breaking Biology Technology:Functional Ingredient Manufacturer – Vital Force Technology Infuses Raw Materials & Ingredients with Subtle Energy Formula 2Polyurethane Resin Industry & Thermoplastic Polyurethane Market (China, Global) Analysis Now at DeepResearchReports.com 2Polyurethane Resin Industry & Thermoplastic Polyurethane Market (China, Global) Analysis Now at DeepResearchReports.com 3Polyurethane Resin Industry & Thermoplastic Polyurethane Market (China, Global) Analysis Now at DeepResearchReports.com 4Midwest Biotech Leaders Featured On BioSpace Map 2Research on Digital Health, Alzheimer's, Ebola Draws Nearly 20,000 Attendees to 2014 AACC Annual Meeting & Clinical Lab Expo 2Research on Digital Health, Alzheimer's, Ebola Draws Nearly 20,000 Attendees to 2014 AACC Annual Meeting & Clinical Lab Expo 3
... BHRT ) a company committed to delivering ... treat heart failure and,cardiovascular diseases, announced the adoption ... -- Shareholders approved the election of eight ... in 2009 or until their successors are,duly elected ...
... July 30 DNA Heritage has recently,overcome patent claims ... use of DNA testing and databases that allow families ... DNA. The patent covers the,use of surnames and Y-chromosomes ... (UK IPO) has now rendered a formal opinion,stating that ...
... ROCKVILLE, Md., July 30 Stem cell ... Dr. Thomas Hazel will be,rejoining the company as ... Dr. Karl Johe, Neuralstem,s Chairman and Chief Science,Officer, ... ALS,(Amytrophic Lateral Sclerosis, or Lou Gehrig,s disease), and ...
Cached Biology Technology:Bioheart, Inc. Announces Results of Annual Meeting 2Bioheart, Inc. Announces Results of Annual Meeting 3Bioheart, Inc. Announces Results of Annual Meeting 4Bioheart, Inc. Announces Results of Annual Meeting 5DNA Heritage Success in Patent Battle Helps Keep Genealogy DNA Test Prices Low 2Neuralstem Fills Key Product Development Position 2
... Receptor (GR) Competitor Assay Kits are ideal ... compounds. The PolarScreen GR Competitor Assay Kits ... buffer, and one of the following proprietary ... kit), GS Red (red assay kit), or ...
... contains enough separation reagents to ... of 5 x 10 8 ... StemSep red magnet and all ... for the specific cell type ...
... Source rat adult and fetal ... $550.00, * T75 plated cells ... * This product requires Celprogen ... M55007-08 and extracellular matrix, * ...
... Tissue Arrays are intended for laboratory research ... fixed in neutral buffered formalin and embedded ... was performed by certified pathologists. Tissue ... and relocated into a new recipient paraffin ...
Biology Products: