Navigation Links
A revolutionary breakthrough in terahertz remote sensing

A major breakthrough in remote wave sensing by a team of Rensselaer Polytechnic Institute researchers opens the way for detecting hidden explosives, chemical, biological agents and illegal drugs from a distance of 20 meters.

The new, all-optical system, using terahertz (THz) wave technology, has great potential for homeland security and military uses because it can "see through" clothing and packaging materials and can identify immediately the unique THz "fingerprints" of any hidden materials.

Terahertz waves occupy a large segment of the electromagnetic spectrum between the infrared and microwave bands which can provide imaging and sensing technologies not available through conventional technologies such as x-ray and microwave.

"The potential of THz wave remote sensing has been recognized for years, but practical application has been blocked by the fact that ambient moisture interferes with wave transmission," says Xi-Cheng Zhang, Ph.D., director of the Center for THz Research at Rensselaer.

Dr. Zhang, the J. Erik Jonsson Professor of Science at Rensselaer, is lead author of a paper to be published next week in the journal Nature Photonics. Titled "Broadband terahertz wave remote sensing using coherent manipulation of fluorescence from asymmetrically ionized gases," the paper describes the new system in detail.

The "all optical" technique for remote THz sensing uses laser induced fluorescence, essentially focusing two laser beams together into the air to remotely create a plasma that interacts with a generated THz wave. The plasma fluorescence carries information from a target material to a detector where it is instantly compared with material spectrum in the THz "library," making possible immediate identification of a target material.

"We have shown that you can focus a 800 nm laser beam and a 400 nm laser beam together into the air to remotely create a plasma interacting with the THz wave, and use the plasma fluorescence to convey the information of the THz wave back to the local detector," explains Dr. Zhang.

Repeated terrorist threats and the thwarted Christmas Eve bombing attempt aboard a Northwest airline heightened interest in developing THz remote sensing capabilities, especially from Homeland Security and the Defense Department, which have funded much of the Rensselaer research.

Because THz radiation transmits through almost anything that is not metal or liquid, the waves can "see" through most materials that might be used to conceal explosives or other dangerous materials, such as packaging, corrugated cardboard, clothing, shoes, backpacks and book bags.

Unlike x-rays, THz radiation poses little or no health threat. However, the technique cannot detect materials that might be concealed in body cavities.

"Our technology would not work for owners of an African diamond mine who are interested in the system to stop workers from smuggling out diamonds by swallowing them," Dr. Zhang says.

Though most of the research has been conducted in a laboratory setting, the technology is portable and eventually could be used to check out backpacks or luggage abandoned in an airport for explosives, other dangerous materials or for illegal drugs. On battlefields, it could detect where explosives are hidden.

The fact that each substance has its own unique THz "fingerprint" will show exactly what compound or compounds are being hidden, a capability that is expected to have multiple important and unexpected uses. In the event of a chemical spill, for instance, remote sensing could identify the composition of the toxic mix. Since sensing is remote, no individuals will be needlessly endangered.

"I think I can predict that, within a few years, the THz science and technology will become more available and ready for industrial and defense-related use," predicts Dr. Zhang.


Contact: Marshall Hoffman
Rensselaer Polytechnic Institute

Related biology technology :

1. Revolutionary New In-Office EVOLVE(R) Laser Prostate Treatment Available Throughout Western Oregon
2. FDA Approves Orphan Drug Status for Revolutionary Cancer Drug for Children
3. Hong Kong Biotech Company, Filligent, Announces CE Certification of Its Revolutionary, Anti-Infective Medical Face Mask, the BioMask
4. BioNanomatrixs Revolutionary Whole Genome Analysis Platform Named to MIT Technology Reviews Annual 10 Emerging Technologies List
5. Z Therapy Is The First In North Texas To Offer Revolutionary Treatment Option For Neck Pain Sufferers
6. Accuri Cytometers Adds Automation to Its Revolutionary C6 Flow Cytometer(R) System With Commercial Launch of CSampler(TM)
7. ForteBio Launches Two Revolutionary High-Throughput, Label-Free Instruments: The Octet(R) RED384 and the Octet QK384
8. Microfluidics Introduces Revolutionary Bottom-up Technology as a Platform for Continuous Pharmaceutical Manufacturing
9. Microfluidics and POWREX Launch Revolutionary Continuous Pharmaceutical Manufacturing Technology in Japan
10. A revolutionary breakthrough in terahertz remote sensing
11. Stoppert Named as President and CEO at Breakthrough Renewable Technology Firm Segetis, Inc
Post Your Comments:
(Date:10/8/2015)... , Oct. 8, 2015  Today, DuPont ... technologies for genome editing, jointly announced a strategic ... Caribou have cross-licensed their respective patent portfolios, with DuPont ... applications in major row crops, and non-exclusive rights ... --> --> ...
(Date:10/8/2015)... , Oct. 8, 2015  Sigma-Aldrich Corporation ... Cerilliant ® brand within its Applied Diagnostics ... bile acid reference standards product line with ten ... routinely tested bile acids and their stable-labeled internal ... consist of lithocholic acid, taurocholic acid and native ...
(Date:10/7/2015)... , October 8, 2015 ... Medical biotechnology accounts for largest bioinformatics market ... in drug discovery and development process says ... . --> ... the basis of applications, the bioinformatics market ...
(Date:10/7/2015)... , Oct. 7, 2015  ChromaDex Corp. (OTCQX: ... nutritional ingredients that creates science-based solutions for dietary ... and pharmaceutical products, today announced that the October ... and Founder, is now available for on-demand viewing ... -->   --> ...
Breaking Biology Technology:
... WAYNE, Pa., March 7, 2012 Molecular Detection ... to increase the speed and accuracy of infectious ... a $1.5 million financing.  The funds are primarily ... panels for the detection of sepsis and gastrointestinal ...
... HAWTHORNE, N.J., March 6, 2012   Proteonomix, Inc. ... definitive agreements with certain institutional investors, pursuant to which ... Series E convertible preferred stock at an aggregate purchase ... a total of  895,291 shares of Proteonomix common stock) ...
... researchers including Drexel University,s Dr. Yury Gogotsi has given ... functions of the electrodes of supercapacitors the low-cost, ... and many other applications. In a piece published in ... Gogotsi, and his collaborators from universities in France and ...
Cached Biology Technology:
(Date:10/9/2015)... ) ... "Samsung Galaxy S6 Fingerprint Sensor - Reverse ... --> ) has announced ... S6 Fingerprint Sensor - Reverse Costing Analysis" ... Research and Markets ( ) ...
(Date:10/8/2015)... , Oct. 8, 2015 Synaptics ... human interface solutions, announced today that it will ... fiscal 2016 on Thursday, October 22, 2015, after ... a corresponding conference call for analysts and investors ... which management may discuss forward-looking information.    ...
(Date:10/8/2015)... , 8. Oktober 2015 Die ... tätiges Unternehmen des Bereiches Tracking, hat heute ... der Gefängnisbehörde Virginias (Department of Corrections – ... Überwachungsdienste für alle Strafen geliefert werden, die ... , Präsident für den Amerikanischen Kontinent der ...
Breaking Biology News(10 mins):
... Finland have in collaboration with the University of Turku, ... and Pharmatest Services Ltd, discovered a novel mechanism regulating ... that heparin-like compounds can potentially be used to inhibit ... were published on the Molecular Cancer Research ...
... of Australian and US scientists has found there has been ... found off the coast of Antarctica.,Comparing detailed measurements taken during ... to historical data dating back to 1970, scientists estimate there ... in the volume of Antarctic Bottom Water, the cold dense ...
... San Diego has identified an approved arthritis drug that is ... could offer a low-dose, low cost treatment for the amoebic ... Based on these results, the team has received Orphan Drug ... Food and Drug Administration, and has applied for approval to ...
Cached Biology News:
... Highly efficient delivery of siRNA while ... Electroporate up to 96 samples simultaneously ... from cell harvest to post-electroporation incubation ... , Designed for use with ...
100 adhesive strips....
Request Info...
Bethyl Laboratories packages antibodies, conjugates and calibrators to provide quantitative ELISA kits. Each kit contains the following components, sufficient for 1000 single well assays....
Biology Products: