Featured Research

from universities, journals, and other organizations

Terahertz technology: Seeing more with less

Date:
May 13, 2013
Source:
The Agency for Science, Technology and Research (A*STAR)
Summary:
Single-chip integration of the components needed for sending and receiving terahertz radiation should help applications in imaging and communication.

Terahertz radiation can penetrate materials such as a paper envelope and reveal the contents (left) in an accurate image (right).
Credit: 2013 A*STAR Institute of Microelectronics

Single-chip integration of the components needed for sending and receiving terahertz radiation should help applications in imaging and communication

Terahertz technology is an emerging field that promises to improve a host of useful applications, ranging from passenger scanning at airports to huge digital data transfers. Terahertz radiation sits between the frequency bands of microwaves and infrared radiation, and it can easily penetrate many materials, including biological tissue. The energy carried by terahertz radiation is low enough to pose no risk to the subject or object under investigation.

Before terahertz technology can take off on a large scale, however, developers need new kinds of devices that can send and receive radiation in this frequency range. Worldwide, electronic engineers are developing such devices. Now, Sanming Hu and co-workers from the A*STAR Institute of Microelectronics (IME), Singapore, have designed novel circuits and antennas for terahertz radiation and efficiently integrated these components into a transmitter-receiver unit on a single chip. Measuring just a few millimeters across, this area is substantially smaller than the size of current commercial devices. As such, it represents an important step towards the development of practical terahertz technologies.

Hu and his co-workers based their terahertz design on a fabrication technology known as BiCMOS, which enables full integration of devices on a single chip of only a few cubic millimeters in size. "Currently, commercial products for terahertz technologies use discrete modules that are assembled into a device," explains Hu. These module-based devices tend to be considerably more bulky than fully integrated systems.

"In a commercial terahertz transmitter-receiver unit, the central module alone measures typically around 190 by 80 by 65 millimeters, which is roughly 1 million cubic millimeters," says Hu. The novel design of Hu's team unites the essential components of a terahertz device in a smaller two-dimensional area of just a few millimeters along each side. According to Hu and his co-workers, this compact device paves the way towards the mass production of a fully integrated terahertz system.

As the next step, the team will use the IME's cutting-edge technologies to build more complex structures composed of several two-dimensional layers, which will be based on their new designs. Although the team is not pursuing any specific applications, their devices potentially open up a wide range of possibilities. These include wireless short-range transfers of data sets -- the content of a Blu-ray disc could be sent in as little as a few seconds, for example -- high-resolution biosensing, risk-free screening of patients and passengers, and see-through-envelope imaging (see image).


Story Source:

The above story is based on materials provided by The Agency for Science, Technology and Research (A*STAR). Note: Materials may be edited for content and length.


Journal Reference:

  1. Sanming Hu, Yong-Zhong Xiong, Bo Zhang, Lei Wang, Teck-Guan Lim, Minkyu Je, Mohammad Madihian. A SiGe BiCMOS Transmitter/Receiver Chipset With On-Chip SIW Antennas for Terahertz Applications. IEEE Journal of Solid-State Circuits, 2012; 47 (11): 2654 DOI: 10.1109/JSSC.2012.2211658

Cite This Page:

The Agency for Science, Technology and Research (A*STAR). "Terahertz technology: Seeing more with less." ScienceDaily. ScienceDaily, 13 May 2013. <www.sciencedaily.com/releases/2013/05/130513115000.htm>.
The Agency for Science, Technology and Research (A*STAR). (2013, May 13). Terahertz technology: Seeing more with less. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2013/05/130513115000.htm
The Agency for Science, Technology and Research (A*STAR). "Terahertz technology: Seeing more with less." ScienceDaily. www.sciencedaily.com/releases/2013/05/130513115000.htm (accessed July 24, 2014).

Share This




More Matter & Energy News

Thursday, July 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

TSA Administrator on Politics and Flight Bans

TSA Administrator on Politics and Flight Bans

AP (July 24, 2014) TSA administrator, John Pistole's took part in the Aspen Security Forum 2014, where he answered questions on lifting of the ban on flights into Israel's Tel Aviv airport and whether politics played a role in lifting the ban. (July 24) Video provided by AP
Powered by NewsLook.com
Creative Makeovers for Ugly Cellphone Towers

Creative Makeovers for Ugly Cellphone Towers

AP (July 24, 2014) Mobile phone companies and communities across the country are going to new lengths to disguise those unsightly cellphone towers. From a church bell tower to a flagpole, even a pencil, some towers are trying to make a point. (July 24) Video provided by AP
Powered by NewsLook.com
Algonquin Power Goes Activist on Its Target Gas Natural

Algonquin Power Goes Activist on Its Target Gas Natural

TheStreet (July 23, 2014) When The Deal's Amanda Levin exclusively reported that Gas Natural had been talking to potential suitors, the Ohio company responded with a flat denial, claiming its board had not talked to anyone about a possible sale. Lo and behold, Canadian utility Algonquin Power and Utilities not only had approached the company, but it did it three times. Its last offer was for $13 per share as Gas Natural's was trading at a 60-day moving average of about $12.50 per share. Now Algonquin, which has a 4.9% stake in Gas Natural, has taken its case to shareholders, calling on them to back its proposals or, possibly, a change in the target's board. Video provided by TheStreet
Powered by NewsLook.com
Robot Parking Valet Creates Stress-Free Travel

Robot Parking Valet Creates Stress-Free Travel

AP (July 23, 2014) 'Ray' the robotic parking valet at Dusseldorf Airport in Germany lets travelers to avoid the hassle of finding a parking spot before heading to the check-in desk. (July 23) Video provided by AP
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:
from the past week

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