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:8/19/2015)... , Aug. 19, 2015  VOXX International Corporation ... has entered into a Definitive Agreement to purchase ... iris authentication market leader EyeLock through an acquiring ... have a controlling interest in the acquiring entity. ... completion of due diligence.  Expanding on its existing ...
(Date:8/12/2015)... 12, 2015   MedNet Solutions , an innovative ... of clinical research, is proud to announce that ... SaaS-based eClinical technology platform, has led the way to ... quarters of 2015.   Q2 2015 and Q1 2015 ... by contract value sold in the company,s 15 year ...
(Date:8/11/2015)... Today, ZUK announced its Android smartphone Z1, featuring FPC,s touch ... 2015 that relate to sales of FPC1155 for this smartphone model ... for 2015. Jörgen Lantto, CEO of FPC, comments: " ... manufacturer in China and we are proud ... for Z1 , its first ...
Breaking Biology News(10 mins):VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 2VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 3VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 4VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 5MedNet Solutions Experiences Explosive Corporate Growth 2FPC's Touch Fingerprint Sensor FPC1155 in ZUK's Smartphone Z1 2
... Rochelle, NY, September 1, 2010Biopharmaceutical firms and ... steps toward creating greener working environments and ... Engineering & Biotechnology News (GEN). This ... series of presentations and panel discussions that ...
... Biophysicists in Bochum have discovered a diode for protons: ... flow of electric current, the "proton diode" ensures that ... one direction. Water molecules play an important role here ... by Prof. Dr. Klaus Gerwert (Chair of Biophysics at ...
... reintroduction of wolves to Yellowstone National Park in 1995 is helping ... elk hungry for winter food had a different idea. They did ... of fear." According to a study set ... of the Ecological Society of America, the fear of wolf predation ...
Cached Biology News:GEN reports on the greening of the life sciences 2Bochum's researchers discover proton diode 2Are wolves saving Yellowstone's aspen trees from elk? 2Are wolves saving Yellowstone's aspen trees from elk? 3
(Date:8/27/2015)... 27, 2015 In response to recent ... and The US Postal Service to no longer ... ,select agents, by the CDC, Marken reaffirmed today ... sensitive shipments. Marken uses its flexible ... and certified personnel to ensure the safe and ...
(Date:8/26/2015)...  Roka Bioscience, Inc. (NASDAQ: ROKA ), a ... for the detection of foodborne pathogens, today announced that ... & Company Emerging Growth Conference on September 2 at ... New York Marriott Marquis. A live ... investor relations section of Roka Bioscience,s website at ...
(Date:8/26/2015)... GERMANTOWN, Md. , Aug. 26, 2015 ... synthetic biology, announced today the closing of its previously ... in full by the underwriters of their option to ... the public offering price of $41.00 per share.  The ... of shares of common stock sold by Intrexon to ...
(Date:8/26/2015)... 26, 2015 Despite recent ... the optimism in biotech,s forecast is the recent ... sciences advancements.  Active biotechnology & healthcare companies with ... (OTCQB: PBIO), Sequenom, Inc. (NASDAQ: SQNM ), ... Pharmaceutical Corp. (NASDAQ: RPTP ) and EnteroMedics ...
Breaking Biology Technology:Marken Ensures Safe Transportation Of Select Agents And Toxins 2Intrexon Announces Closing of $230 Million Public Offering of Common Stock including Full Exercise of Underwriters' Option to Purchase Additional Shares 2Intrexon Announces Closing of $230 Million Public Offering of Common Stock including Full Exercise of Underwriters' Option to Purchase Additional Shares 3Intrexon Announces Closing of $230 Million Public Offering of Common Stock including Full Exercise of Underwriters' Option to Purchase Additional Shares 4New Collaborations & Mergers For Research of Molecular Biomarkers in Human Diseases & Clinical Trials for Cancer Therapies Fueling Growth in Multi-Billion Dollar Life Sciences Market 2New Collaborations & Mergers For Research of Molecular Biomarkers in Human Diseases & Clinical Trials for Cancer Therapies Fueling Growth in Multi-Billion Dollar Life Sciences Market 3New Collaborations & Mergers For Research of Molecular Biomarkers in Human Diseases & Clinical Trials for Cancer Therapies Fueling Growth in Multi-Billion Dollar Life Sciences Market 4New Collaborations & Mergers For Research of Molecular Biomarkers in Human Diseases & Clinical Trials for Cancer Therapies Fueling Growth in Multi-Billion Dollar Life Sciences Market 5New Collaborations & Mergers For Research of Molecular Biomarkers in Human Diseases & Clinical Trials for Cancer Therapies Fueling Growth in Multi-Billion Dollar Life Sciences Market 6New Collaborations & Mergers For Research of Molecular Biomarkers in Human Diseases & Clinical Trials for Cancer Therapies Fueling Growth in Multi-Billion Dollar Life Sciences Market 7
... ... about fast, new treatment program for FIV and FELV , ... New York, N.Y. (PRWEB) November 4, 2009 -- IMULAN BioTherapeutics, LLC ... fast way to get LTCI for feline immunodeficiency virus (FIV) and feline leukemia virus (FeLV). ...
... ... To Target Tissues Affected by Osteoarthritis. Physics and Biology are Natural Partners in the ... ... medical device, the MyPhield Arthritis Therapy Cushion that naturally relieves osteoarthritis without causing unwanted ...
... Nov. 3 VIVUS, Inc. (Nasdaq: VVUS ... of novel therapeutic products, today reported its highlights and financial ... , Third Quarter Highlights , In ... two final, phase 3 pivotal 56-week studies, EQUIP (OB-302) and ...
Cached Biology Technology:New Program Developed in the Fight Against Feline Aids 2New Technology Now Available In Canada For Osteoarthritis 2VIVUS Reports Third Quarter 2009 Highlights and Financial Results 2VIVUS Reports Third Quarter 2009 Highlights and Financial Results 3VIVUS Reports Third Quarter 2009 Highlights and Financial Results 4VIVUS Reports Third Quarter 2009 Highlights and Financial Results 5VIVUS Reports Third Quarter 2009 Highlights and Financial Results 6VIVUS Reports Third Quarter 2009 Highlights and Financial Results 7VIVUS Reports Third Quarter 2009 Highlights and Financial Results 8
... HybriCycler Hybridization Oven with circular clear acrylic ... tubes. HC-3000 HybriCycler Oven features microprocessor operation ... feet balance the unit., Carousel rotates ... carousel is ,easily removable , Bottle ...
... The KingFisher magnetic particle based purification ... and DNA/RNA from any sample. They offer ... family comprises three systems- KingFisher, KingFisher mL ... 20 - 1000 l. Each system consists ...
... is specifically engineered for efficient drying down ... a glass cover and a post-trap with ... odor-free processing of samples in ammonium hydroxide., ... Oligos , Comes ...
... Thermo Savant SpeedVac™ Concentrators set the standard ... series SC210A SpeedVac with large chamber uses a ... dry multiple samples in a single run. , ... Rotor Chamber for long lasting chemical compatibility ...
Biology Products: