Featured Research

from universities, journals, and other organizations

Hurdle overcome in development of terahertz lasers

Date:
March 7, 2013
Source:
INRS
Summary:
Scientists have developed a device that is critical to the use of terahertz sources for a variety of applications. Their electromagnetic non-reciprocal isolator paves the way for applications using terahertz frequencies including the development of terahertz lasers and amplifiers, to which the scientific community is currently devoting much attention.

Dr. Roberto Morandotti and his team at the INRS Énergie Matériaux Télécommunications Research Centre have developed a device that is critical to the use of terahertz (THz) sources for a variety of applications. Their electromagnetic non-reciprocal isolator is the subject of a recent article in Nature Communications, showing just how important this new development is. Until now, no isolator existed that was effective in the THz region of the spectrum, a situation that held back the development of certain technologies. The new device paves the way for applications using terahertz frequencies including the development of terahertz lasers and amplifiers, to which the scientific community is currently devoting much attention.

Related Articles


Recent advances in the field of THz wave sources and detectors have spurred the development of imaging, communications, and spectroscopy technologies -- these last used in the detection of explosives. All these technologies use electromagnetic spectrum bandwidths for which current isolators are not suitable.

An isolator is needed to prevent reflected waves from distorting measurements or damaging other components. Thus the absence of a workable isolator represented a major limitation to the use of THz wave sources. Dr. Morandotti's work at INRS provides the first solution to this problem, using a strontium iron oxide (SrFe12O19) magnet, which has the additional benefit of requiring no external magnetic field.


Story Source:

The above story is based on materials provided by INRS. Note: Materials may be edited for content and length.


Journal Reference:

  1. Mostafa Shalaby, Marco Peccianti, Yavuz Ozturk, Roberto Morandotti. A magnetic non-reciprocal isolator for broadband terahertz operation. Nature Communications, 2013; 4: 1558 DOI: 10.1038/ncomms2572

Cite This Page:

INRS. "Hurdle overcome in development of terahertz lasers." ScienceDaily. ScienceDaily, 7 March 2013. <www.sciencedaily.com/releases/2013/03/130307124659.htm>.
INRS. (2013, March 7). Hurdle overcome in development of terahertz lasers. ScienceDaily. Retrieved April 18, 2015 from www.sciencedaily.com/releases/2013/03/130307124659.htm
INRS. "Hurdle overcome in development of terahertz lasers." ScienceDaily. www.sciencedaily.com/releases/2013/03/130307124659.htm (accessed April 18, 2015).

Share This


More From ScienceDaily



More Matter & Energy News

Saturday, April 18, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

At Least 15 Injured in a California Natural Gas Pipeline Explosion

At Least 15 Injured in a California Natural Gas Pipeline Explosion

Reuters - US Online Video (Apr. 18, 2015) — At least 15 injred after natural gas transmission line ruptures in Fresno, California. Julie Noce reports. Video provided by Reuters
Powered by NewsLook.com
NASA Electric Rover Goes for a Spin

NASA Electric Rover Goes for a Spin

Reuters - Innovations Video Online (Apr. 17, 2015) — NASA&apos;s prototype electric buggy could influence future space rovers and conventional cars. Jim Drury reports. Video provided by Reuters
Powered by NewsLook.com
Scientists Create Self-Powering Camera

Scientists Create Self-Powering Camera

Reuters - Innovations Video Online (Apr. 17, 2015) — American scientists build a self-powering camera that captures images without using an external power source, allowing it to operate indefinitely in a well-lit environment. Elly Park reports. Video provided by Reuters
Powered by NewsLook.com
The State Of Virtual Reality

The State Of Virtual Reality

Newsy (Apr. 17, 2015) — Virtual Reality is still a young industry. What’s on offer and what should we expect from our immersive new future? 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