Navigation Links
All-optical transistor
Date:11/11/2010

Controlling and modulating the flow of light is essential in today's telecommunications-based society. Professor Tobias Kippenberg and his team in EPFL's Laboratory of Photonics and Quantum Measurements have discovered a novel way to couple light and vibrations. Using this discovery, they built a device in which a beam of light traveling through an optical microresonator could be controlled by a second, stronger light beam. The device thus acts like an optical transistor, in which one light beam influences the intensity of another.

Their optical microresonator has two characteristics: first, it traps light in a tiny glass structure, guiding the beam into a circular pattern. Second, the structure vibrates, like a wine glass, at well-defined frequencies. Because the structure is so tiny (a fraction of the diameter of a human hair), these frequencies are 10,000 times higher than a wineglass vibration. When light is injected into the device, the photons exert a force called radiation pressure, which is greatly enhanced by the resonator. The increasing pressure deforms the cavity, coupling the light to the mechanical vibrations. If two light beams are used, the interaction of the two lasers with the mechanical vibrations results in a kind of optical "switch": the strong "control" laser can turn on or off a weaker "probe" laser just as in a electronic transistor.

"We have known for more than two years that this effect was theoretically possible," explains Max-Planck Institute scientist Albert Schliesser, but pinning it down proved difficult. "Once we knew where to look, it was right there," recalls EPFL PhD student Stefan Weis, one of the lead authors of the paper. Senior EPFL scientist Samuel Delglise notes that "the agreement between theory and experiment is really striking."

Applications of this novel effect, baptised "OMIT" (optomechanically-induced transparency), could provide entirely new functionality to photonics. Radiation-t
'/>"/>

Contact: Tobias Kippenberg
tobias.kippenberg@epfl.ch
41-216-934-428
Ecole Polytechnique Fdrale de Lausanne
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. McGill physicists find a new state of matter in a transistor
2. USC researchers print dense lattice of transparent nanotube transistors on flexible base
3. Mysterious charge transport in self-assembled monolayer transistors unraveled
4. Nanoelectronic transistor combined with biological machine could lead to better electronics
5. Nanowires key to future transistors, electronics
6. Scientists create worlds first molecular transistor
7. Nanoribbons for graphene transistors
8. New nanoscale transistors allow sensitive probing inside cells
9. UCLA chemists, engineers achieve world record with high-speed graphene transistors
10. New computer switches handle heat that renders transistors useless
11. Triple-mode transistors show potential
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
All-optical transistor
(Date:4/16/2015)... (PRWEB) April 16, 2015 The ... that the prestigious 2015 Borlaug CAST Communication Award ... member at Tuskegee University in Alabama. Award nominees ... material; public presentations; and/or the use of television, ... all three areas. As a specialist in the ...
(Date:4/16/2015)... /PRNewswire/ - Portage Biotech Inc. ("Portage" or "the Company" ... pleased to announce that the Company will be presenting ... to be held in London, UK ... Mr. James Mellon , a director of Portage, ... key programs at its subsidiaries, Portage Pharmaceuticals Ltd. ("PPL"), ...
(Date:4/16/2015)... April 16, 2015 /CNW/ - Bioenterprise Corporation is pleased to ... in Charlottetown , PEI.  Bioenterprise has ... Island ADAPT Council for the commercialization of agricultural technologies ... working with PEI ADAPT.  They have been at the ... a decade," explains Dave Smardon , President & ...
(Date:4/16/2015)... AZ (PRWEB) April 16, 2015 A ... makes it easier for research institutions to learn how ... clinical data. , The timing is ideal since Apple ... Tuesday. Research Kit is an open-source framework for developing ... It provides a way for researchers to collect secure ...
Breaking Biology Technology:The 2015 Borlaug CAST Communication Award Goes to Channapatna Prakash 2Portage to Present at Master Investor 2015 in London, UK 2Portage to Present at Master Investor 2015 in London, UK 3Portage to Present at Master Investor 2015 in London, UK 4Bioenterprise Corporation Expands into the Maritimes 2Infographic Illustrates Potential for Research Kit to Impact Clinical Research 2Infographic Illustrates Potential for Research Kit to Impact Clinical Research 3
... in Janesville last week as General Motors announced it will ... a decision that will keep high-wage manufacturing jobs in southern ... in the Janesville line means the plant will stay open ... whether the plants total of 3,900 jobs will grow or ...
... of North Prairie, Wisconsin, has signed a contract with ... new software is fully integrated with the rest of ... chain management and financial applications, which the company implemented ... cases used primarily by grocery, convenience, and drug store ...
... Information Systems employees will be participating for the ... management students at Blackhawk Technical College , located ... a comprehensive experience for students as they research a ... technology business solutions to local businesses. , ,As ...
Cached Biology Technology:GM Choice is Great News, But Wisconsins Economy Must Keep on Truckin to Prosper in a New Era 2Zero Zone Adds Sales and Marketing Automation Tools 2
(Date:3/19/2015)... , March 19, 2015  NXT-ID, Inc. (NASDAQ: ... company focused on the growing mobile commerce market, announces its ... a news clip that aired this week on ... . In a segment "The Next Great Thing", ... ,a new way to pay, and ,a really big breakthrough ...
(Date:3/17/2015)... Minn. , March 17, 2015 ... technology company specializing in clinical study management systems, ... be in attendance at ARENA,s Outsourcing in Clinical ... NC.  This event provides an excellent forum for ... easy-to-use, flexible and affordable software-as-a-service (SaaS) eClinical technology ...
(Date:3/17/2015)... YORK , March 17, 2015  MecklerMedia ... the largest exhibition for service robots ever held ... RoboUniverse takes place on May 11-13, 2015 at ... and exhibitors for the event include: Acorn Product ... Control; EZ-Robot; Infranor; Kinova Robotics; Littler; NewBotic Corporation; ...
Breaking Biology News(10 mins):NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 2NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 3Connect With MedNet Solutions At Outsourcing In Clinical Trials Southeast 2MecklerMedia's RoboUniverse New York Announces Sponsors and Exhibitors, May 11-13, 2015 2
... , Blacksburg, Va. New advances for the detection ... Virginia Tech-Wake Forest School of Biomedical Engineering and Science ... January 19, 2010 Royal Society of Chemistry,s magazine, " ... researchers in microfluidics. http://www.rsc.org/Publishing/Journals/lc/index.asp Microfluidics is ...
... in French . Malaria causes more than ... battling the global spread of drug-resistant parasites has made a ... the make-up of these parasites and the way they reproduce ... biochemist in McGill,s Institute of Parasitology, to identify a plan ...
... pioneering international study involving academics from the University of Sheffield ... to improve the eating skills and nutritional status of older ... in the International Journal of Geriatric Psychiatry and ... two separate intervention methods to assess the eating patterns of ...
Cached Biology News:Advances in cancer detection research by Virginia Tech engineer featured in British magazine 2Advances in cancer detection research by Virginia Tech engineer featured in British magazine 3New method improves eating skills of dementia patients 2
Glutathione Agarose Beads 10 ml...
...
...
Rabbit monoclonal [EP881Y] to EEF2K ( Abpromise for all tested applications). Antigen: Synthetic peptide corresponding to residues in the C-terminal of human EEF2K. Entrez GeneID: 29904 S...
Biology Products: