Featured Research

from universities, journals, and other organizations

Physicist Sees Terahertz Imaging As Ultimate Defense Against Terrorism

Date:
November 1, 2005
Source:
New Jersey Institute of Technology
Summary:
John Federici, PhD, professor, department of physics, New Jersey Institute of Technology (NJIT) and other physicists at NJIT recently received a U.S. Patent for a Teraherz imaging system and method. Since 1995, Terahertz imaging has grown in importance as new and sophisticated devices and equipment have empowered scientists to understand its potential.

The NJIT terahertz detection team (from left) -- John Federici, Robert Barat and Dale Gary.
Credit: Image courtesy of New Jersey Institute of Technology

John Federici, PhD, professor, department of physics, New Jersey Institute of Technology (NJIT) and other physicists at NJIT recently received a U.S. Patent for a Terahertz imaging system and method. Since 1995, Terahertz imaging has grown in importance as new and sophisticated devices and equipment have empowered scientists to understand its potential.

Related Articles


"I see the Terahertz spectrum as one of the critical technologies for defense against suicide bombers and other terrorist activities," Federici said.

Federici's research has focused on the potential applications of Terahertz rays for directly detecting and imaging concealed weapons and explosives. Another application is the remote detection of chemical and biological agents in the atmosphere. In November of 2004, Federici and.

"The idea has been to apply different methods of imaging to Terahertz rays," said Federici. His research team has focused in particular on applications of synthetic aperture imaging to the Terahertz range. "The advantage of this particular method is the ability to generate Terahertz images with a large number of pixels using a limited number of Terahertz detectors. This imaging method should also be capable of video-rate imaging, thereby enabling the real-time monitoring of people hiding concealed explosives or other dangers." A typical imaging system would be analogous to a still or video camera designed for this purpose.

Scientists favor Terahertz radiation because it can transmit through most non-metallic and non-polar mediums. When a Terahertz system is used correctly, people can see through concealing barriers such as packaging, corrugated cardboard, walls, clothing, shoes, book bags, pill coatings, etc. in order to probe for concealed or falsified materials.

Once the rays penetrate those materials, they can also characterize what might be hidden -- be they explosives, chemical agents or more--based on a spectral fingerprint the rays will sense which can identify the material. Terahertz radiation also poses minimal or no health risk to either the person being scanned or the THz system operator.

Federici and his team recently published "Terahertz imaging and sensing for security applications explosives, weapons and drugs," in Semiconductor Science and Technology (Vol 20, page 266, 2005). The U.S. Department of Homeland Security, Army Research Office and National Science Foundation have provided funding for this research since 2002.

The article focused on three configurations of Terahertz systems, examining when and how best to use the rays. Transmission versus reflective detection, pulsed Terahertz detection systems versus continuous wave systems, and close proximity versus stand-off detection are compared.

"While pulsed Terahertz detection systems are capable of close proximity detection," said Federici, "there are many factors to take into account. For example, distortions to Terahertz pulses introduced by propagation through the atmosphere, favor a continuous wave system for stand-off detection."

Federici has recently garnered praise for his work. He recently received NJIT's top research honor, the Harlan Perlis Research Award. Next month, Federici will accept an award for his work from the Research & Development Council of New Jersey. The council honors and helps those individuals upholding the legacies of Albert Einstein and Thomas Alva Edison, both of whom lived and worked most of their lives in New Jersey.

Federici's research interests span discovery of infrared quenched photo-induced superconductivity and localized energy states in nano-materials to online semi-conductor process monitoring to advanced spectroscopic imaging technologies. He has been the lead writer on more than 50 publications in scholarly journals and holds four patents. His most recent patents emphasize Terahertz synthetic aperture imaging.

###

Federici received his bachelor's degree from University of Notre Dame and his doctorate in plasma physics from Princeton University.

New Jersey Institute of Technology, the state's public technological research university, enrolls more than 8,300 students in bachelor's, master's and doctoral degrees in 100 degree programs offered by six colleges: Newark College of Engineering, New Jersey School of Architecture, College of Science and Liberal Arts, School of Management, Albert Dorman Honors College and College of Computing Sciences. NJIT is renowned for expertise in architecture, applied mathematics, wireless communications and networking, solar physics, advanced engineered particulate materials, nanotechnology, neural engineering and eLearning.


Story Source:

The above story is based on materials provided by New Jersey Institute of Technology. Note: Materials may be edited for content and length.


Cite This Page:

New Jersey Institute of Technology. "Physicist Sees Terahertz Imaging As Ultimate Defense Against Terrorism." ScienceDaily. ScienceDaily, 1 November 2005. <www.sciencedaily.com/releases/2005/11/051101080318.htm>.
New Jersey Institute of Technology. (2005, November 1). Physicist Sees Terahertz Imaging As Ultimate Defense Against Terrorism. ScienceDaily. Retrieved December 19, 2014 from www.sciencedaily.com/releases/2005/11/051101080318.htm
New Jersey Institute of Technology. "Physicist Sees Terahertz Imaging As Ultimate Defense Against Terrorism." ScienceDaily. www.sciencedaily.com/releases/2005/11/051101080318.htm (accessed December 19, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Friday, December 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Navy Unveils Robot Fish

Navy Unveils Robot Fish

Reuters - Light News Video Online (Dec. 18, 2014) The U.S. Navy unveils an underwater device that mimics the movement of a fish. Tara Cleary reports. Video provided by Reuters
Powered by NewsLook.com
3D Printed Cookies Just in Time for Christmas

3D Printed Cookies Just in Time for Christmas

Reuters - Innovations Video Online (Dec. 18, 2014) A tech company in Spain have combined technology with cuisine to develop the 'Foodini', a 3D printer designed to print the perfect cookie for Santa. Ben Gruber reports. Video provided by Reuters
Powered by NewsLook.com
First Etihad Superjumbo Flight in December

First Etihad Superjumbo Flight in December

AFP (Dec. 18, 2014) The first flight of Etihad Airways' long-awaited Airbus A380 superjumbo will take place later in December, the Abu Dhabi carrier said Thursday, also announcing its first Boeing 787 Dreamliner route. Duration: 01:09 Video provided by AFP
Powered by NewsLook.com
Ford Expands Air Bag Recall Nationwide

Ford Expands Air Bag Recall Nationwide

Newsy (Dec. 18, 2014) The automaker added 447,000 vehicles to its recall list, bringing the total to more than 502,000. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins