Navigation Links
MASER power comes out of the cold
Date:8/16/2012

Scientists demonstrate, for the time, a solid-state "MASER" capable of operating at room temperature, paving the way for its widespread adoption as reported today in the journal Nature.

MASER stands for Microwave Amplification by Stimulated Emission of Radiation. Devices based on this process (and known by the same acronym) were developed by scientists more than 50 years ago, before the first LASERs were invented. Instead of creating intense beams of light, as in the case of LASERs, MASERs deliver a concentrated beam of microwaves.

Conventional MASER technology works by amplifying microwaves using hard inorganic crystals such as ruby, this process is known as "masing". However, the MASER has had little technological impact compared to the LASER because getting it to work has always required extreme conditions that are difficult to produce; either extremely low pressures, supplied by special vacuum chambers and pumps, or freezing conditions at temperatures close to absolute zero ( -273.15C), supplied by special refrigerators. To make matters worse, the application of strong magnetic fields has often also been necessary, requiring large magnets.

Now, the team from the National Physical Laboratory (NPL) and Imperial College London have demonstrated masing in a solid-state device working in air at room temperature with no applied magnetic field. Today's breakthrough means that the cost to manufacture and operate MASERs could be dramatically reduced, which could lead to them becoming as widely used as LASER technology.

The researchers suggest that room-temperature MASERs could be used to make more sensitive medical instruments for scanning patients, improved chemical sensors for remotely detecting explosives; lower-noise read-out mechanisms for quantum computers and better radio telescopes for potentially detecting life on other planets.

Dr Mark Oxborrow, co-author of the study at NPL, says: "For half a century the MASER has been the forgotten, inconvenient cousin of the LASER. Our design breakthrough will enable MASERs to be used by industry and consumers."

Professor Neil Alford, co-author and Head of the Department of Materials at Imperial College London, adds: "When LASERs were invented no one quite knew exactly how they would be used, and yet the technology flourished to the point that LASERs have now become ubiquitous in our everyday lives. We've still got a long way to go before the MASER reaches that level, but our breakthrough does mean that this technology can literally come out of the cold and start becoming more useful."

Conventional MASER technology using hard inorganic crystals such as ruby, only works when the ruby is kept at a very low temperature. The team in today's study have discovered that a completely different type of crystal, namely p-terphenyl doped with pentacene, can replace ruby and replicate the same masing process at room temperature.

As a curious twist, the pentacene dopant turns the otherwise colourless p-terphenyl crystal an intense reddish pink making it look just like ruby!

The twin challenges the team currently face are getting the MASER to work continuously, as their first device only works in pulsed mode for fractions of a second at a time. They also aim to get it to operate over a range of microwave frequencies, instead of its current narrow bandwidth, which would make the technology more useful.

In the long-term, the team have a range of other goals including the identification of different materials that can mase at room temperature while consuming less power than pentacene-doped p-terphenyl. The team will also focus on creating new designs that could make the MASER smaller and more portable.


'/>"/>

Contact: David Lewis
david@proofcommunication.com
44-845-680-1865
National Physical Laboratory
Source:Eurekalert

Related medicine news :

1. Power without the cord
2. Power generation technology based on piezoelectric nanocomposite materials developed by KAIST
3. Moving 3D computer model of key human protein is powerful new tool in fight against cancer
4. Grb2 holds powerful molecular signaling pathway in check
5. Mesothelioma Victims Center Now Offers Its Services to Chemical Plant or Power Plant Workers Living with Mesothelioma Including Naming the Best Mesothelioma Attorneys
6. A Void In The Independent Pharmacy Industry Leads to Independent Rx Consulting, Powered by OurHelix
7. Its Not So Much the Heat, Its the Lack of Power
8. Brain power shortage
9. In children born with severe heart defect, surgical management has little effect on neuro outcomes
10. Early treatment improves outcomes in rare, often undiagnosed form of encephalitis
11. Intensivists at night improve patient outcomes in some ICUs, says Pitt/UPMC team
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/29/2016)... ... 29, 2016 , ... World Patent Marketing , a ... invention which aids in proper muscle development. , "The Gym & Exercise Equipment ... of World Patent Marketing. "Globalization has threatened the future growth of the industry ...
(Date:4/29/2016)... ... April 29, 2016 , ... The Gluten-Free Certification Program (GFCP), ... announce the launch of the GFCP Scoop in response to consumer ... of the GFCP Scoop site is to keep the gluten-free community ...
(Date:4/29/2016)... CA (PRWEB) , ... April 29, 2016 , ... Melanoma is the deadliest type of ... to blame for the majority of skin cancer deaths. More than 10,000 people are expected ... age at diagnosis is 62, it is the one of the most commonly diagnosed cancers ...
(Date:4/29/2016)... ... ... Dr. Robert Mondavi, one of the dentists in Torrance , is ... field as more patients are discovering the many different ways they can change and ... available to them and which ones might work for their smiles. , “One ...
(Date:4/29/2016)... ... , ... New York City based oral and maxillofacial surgeon Dr. Majid Jamali is ... treat obstructive sleep apnea. Dr. Jamali is proud to offer this permanent solution to patients ... or both jaw bones. This surgery is performed to correct the alignment of the jaw. ...
Breaking Medicine News(10 mins):
(Date:4/29/2016)... 29, 2016 Acquisition Expands ... Product Development Capabilities in North America ... . Indegene ( http://www.indegene.com ), ... acquisition of Skura Corporation,s life science business. Skura,s ... sales enablement technology for life science organizations and ...
(Date:4/29/2016)... 29, 2016 ... Sanofi, leader mondial et ... résultats pour le premier trimestre 2016. ... Contamine, commente les résultats du premier ... pour le reste de l,année. ...
(Date:4/29/2016)... Glycotope GmbH, a clinical-stage immuno-oncology company built ... Dr. Alfredo Zurlo as Chief Medical Officer. ... years clinical experience and a proven track record in ... at Mologen AG where he was Chief Medical Officer ... held various positions at F Hoffmann La Roche and ...
Breaking Medicine Technology: