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:1/22/2015)... COLUMBIA, Md. (PRWEB) January 22, 2015 ... of its new UV-1280 multipurpose UV-visible spectrophotometer. Offering ... compact, high-quality instrument is ideal for applications in ... and life science. , The user-friendly UV-1280 enables ...
(Date:1/22/2015)... The laboratory information management systems market is a ... technological advancements due to factors such as rising pressure ... healthcare systems, and increasing government support for adoption of ... players in the market focus on technological advancements to ...
(Date:1/22/2015)... WI (PRWEB) January 22, 2015 Dr. Greg ... the 12th annual Scripps Natural Supplements Pre-Conference seminar on probiotics ... Conference is an annual continuing education conference for health care ... and included the topic of probiotics in health. Dr. Leyer ...
(Date:1/22/2015)... , Jan. 22, 2015   Cypher Genomics, ... Sequenom, Inc. (NASDAQ: SQNM ), the ... agreement for next generation noninvasive prenatal tests (NIPT). ... interpretation technology, called Mantis™, to advance analysis of ...
Breaking Biology Technology:Shimadzu’s New Monitored Single-Beam UV-Vis Spectrophotometer Offers Comprehensive Measurement Options in a Compact Body 2Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 2Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 3Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 4Cypher Genomics and Sequenom Announce Development Agreement 2Cypher Genomics and Sequenom Announce Development Agreement 3Cypher Genomics and Sequenom Announce Development Agreement 4
... /PRNewswire-FirstCall/ - OncoGenex,Pharmaceuticals (NASDAQ: OGXI ) announced ... Fast Track designation from the U.S. Food & ... prostate cancer. OGX-011 is currently completing five Phase ... and is designed to,inhibit the production of a ...
... 21 /PRNewswire-FirstCall/ - Resverlogix Corp.,("Resverlogix") (TSX:RVX) is pleased ... on August 25, 2008 at 11:00 am MDT ... the presentation there will be a live,question and ... at the following link:, http://services.choruscall.com/links/resverlogix080825.html , ...
... BPUR ) today announced its financial results for the ... the company reported a net,loss of $4.6 million, or ... $6.4 million, or $0.41 per common share, for the ... July 31, 2008 and 2007 were,37,340,051 and 15,592,025, respectively., ...
Cached Biology Technology:FDA Grants Fast Track Designation for OncoGenex Pharmaceuticals' Lead Product Candidate OGX-011 2FDA Grants Fast Track Designation for OncoGenex Pharmaceuticals' Lead Product Candidate OGX-011 3FDA Grants Fast Track Designation for OncoGenex Pharmaceuticals' Lead Product Candidate OGX-011 4Resverlogix Notice of Conference Call & Webcast 2Biopure Announces 2008 Third Quarter Financial Results 2Biopure Announces 2008 Third Quarter Financial Results 3Biopure Announces 2008 Third Quarter Financial Results 4Biopure Announces 2008 Third Quarter Financial Results 5Biopure Announces 2008 Third Quarter Financial Results 6Biopure Announces 2008 Third Quarter Financial Results 7
(Date:1/22/2015)... (NASDAQ: NXTD and NXTDW) a biometric authentication company focused ... the Wocket™ smart wallet at CES 2015 in Las Vegas ... of the "11 Hot Products at CES" in a review published in ... by Newseveryday.com and "The top 10 gadgets from CES 2015" by ...
(Date:1/22/2015)... 2015 Research and Markets ( http://www.researchandmarkets.com/research/wxdglm/global_wearable ... "Global Wearable Technologies Market and Applications, Opportunities, Industry ... Forecast 2014-2020" report to their offering. ... that can be worn on the user,s body ...
(Date:12/22/2014)... 2014  NXT-ID, Inc. (NASDAQ: NXTD and NXTDW) ... the growing mobile commerce market, announces it has retained famous ... the 2015 International CES debut of the Wocket™ biometric smart ... at the NXT-ID booth January 6th and 7 th , ...
Breaking Biology News(10 mins):CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 3Global Wearable Technologies Market and Applications, Opportunities, Industry Analysis, Segmentation, Size, Growth, Share, Overview, Trends and Forecast 2014-2020 2NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 2NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 3NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 4
... introducing expression of a special green-algae gene into ... researchers have been able to elicit specific behavioral ... The work paves the way for better understanding ... with muscles, to regulate behavior in intact, living ...
... the film classic "Flowers for Algernon," but adds a happy ... drugs, to reverse the attention deficits linked to the leading ... of Current Biology reports the findings, which were studied in ... , The results proved so hopeful, that the ...
... A team of scientists led by Priscilla Cooper, a ... the Department of Energy's Lawrence Berkeley National Laboratory, has ... repair (TCR), an essential but still mysterious mechanism of ... information from a cell's DNA is being transcribed into ...
Cached Biology News:Algal protein in worm neurons allows remote control of behavior by light 2Recreating 'Flowers for Algernon' with a happy ending 2Recreating 'Flowers for Algernon' with a happy ending 3Discovering the first steps in transcription-coupled repair 2Discovering the first steps in transcription-coupled repair 3Discovering the first steps in transcription-coupled repair 4Discovering the first steps in transcription-coupled repair 5Discovering the first steps in transcription-coupled repair 6
... Fully automated, GLP-compliant Facility , Galaxy LIMS, ... , Highly experienced scientists ,We offer individual ... or full plasmids for single or double ... used when the DNA of interest is ...
Great for biotinylating DNA/RNA probes...
Anti-Wnt-2 Polyclonal Antibody Description: 100 g purified goat polyclonal antibody. Reacts with human/mouse/rat. Tested in Western blot/IP/IHC. Research Focus: signal transduction Storage...
...
Biology Products: