Navigation Links
Laser pulses control single electrons in complex molecules
Date:9/1/2009

Predatory fish are well aware of the problem: In a swarm of small fish it is hard to isolate prey. A similar situation can be found in the microcosm of atoms and molecules, whose behavior is influenced by "swarms" of electrons. In order to achieve control over single electrons in a bunch, ultrashort light pulses of a few femtoseconds duration are needed. Physicists of the Max Planck Institute of Quantum Optics (MPQ) in Garching and chemists of the Ludwig-Maximilians-Universitt (LMU) in Munich succeeded for the first time to use light for controlling single, negatively charged elementary particles in a bunch of electrons. The scientists achieved a major milestone that they aimed for within the excellence cluster "Munich Center for Advanced Photonics" (MAP). They report their results in the journal "Physical Review Letters" (online version: EID 103/103002, 1. September 2009).

Electrons are extremely fast moving particles. In atoms and molecules they move on attosecond timescales. An attosecond is only a billionth of a billionth of a second. With light pulses that last only a few femtoseconds down to attoseconds it is possible to achieve control over these particles and to interact with them on the timescale of their motion. These short light pulses exhibit strong electric and magnetic fields influencing the charged particles. A femtosecond lasts 1000 times longer than an attosecond. In molecules with only a single electron, such as the deuterium molecular ion, their control with such light pulses is relatively easy. This was demonstrated in 2006 by a team of physicists including Professor Marc Vrakking and Dr. Matthias Kling from AMOLF in Amsterdam and Professor Ferenc Krausz in Garching (MPQ).

Scientists led by the junior research group leader Dr. Matthias Kling (MPQ) in collaboration with Professor Marc Vrakking (AMOLF) and Professor Regina de Vivie-Riedle (LMU) have managed to control and monitor the outer electrons from the valence s
'/>"/>

Contact: Prof. Dr. Regina de Vivie-Riedle
regina.de_vivie@cup.uni-muenchen.de
49-892-180-77533
Ludwig-Maximilians-Universitt Mnchen
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. LASIK Expert Edward Manche, M.D., of the Stanford Eye Laser Center Joins Top Surgeons Listed at the Trusted LASIK Surgeons Directory
2. New nanolaser key to future optical computers and technologies
3. Breaking barriers with nanoscale lasers
4. Laser technology creates new forms of metal and enhances aircraft performance
5. Orange County Laser Surgeon Nissan Pilest Tapped as Keynote Speaker at Fraxel & Thermage User Forum Held at Beckman Laser Institute
6. Regular light bulbs made super-efficient with ultra-fast laser
7. New nanotube coating enables novel laser power meter
8. Scientists demonstrate laser with controlled polarization
9. SeqWright to Invest in LaserGens Novel Lightning Terminators(TM)
10. Trusted LASIK Surgeons Welcomes Leading Laser Expert and Inventor Jon Dishler, M.D., to Its Unique LASIK Eye Surgeon Directory for Consumers
11. Plasmonic whispering gallery microcavity paves the way to future nanolasers
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/17/2015)... , April 17, 2015 /PRNewswire/ - SQI Diagnostics Inc. ... diagnostics company that develops and commercializes proprietary technologies ... announced that it has received approval from the ... 5,126,044 outstanding common share purchase warrants ("the Warrants") ... with the Company,s May 2013 private placement financing. ...
(Date:4/17/2015)... 17, 2015 Global Stem Cells ... Stem Cell Summit 2015 April 27 - 29, 2015 ... developments in all areas of stem cell research including ... cells and regenerative medicine. , The conference will ... well as translational research in stem cell therapies, regenerative ...
(Date:4/16/2015)... South Carolina (PRWEB) April 17, 2015 ... and steam system services, released their newly designed, ... The customer facing website effectively promotes the ... , All the information that a site ... steam system services, company capabilities, industries serviced, the ...
(Date:4/16/2015)... South San Francisco, CA (PRWEB) April 16, 2015 ... it is scheduled to report first quarter results on ... Following the announcement, Cytokinetics’ senior management will host a ... operational and financial results and the company’s outlook for ... webcast and can be accessed from the homepage and ...
Breaking Biology Technology:SQI Diagnostics to Extend Warrant Expiry 2SQI Diagnostics to Extend Warrant Expiry 3Global Stem Cells Group To Join GTCbio Stem Cell and Regenerative Medicine Summit in Boston, April 27-29, 2015 2Global Stem Cells Group To Join GTCbio Stem Cell and Regenerative Medicine Summit in Boston, April 27-29, 2015 3Spirax Sarco website has a new look 2Cytokinetics to Announce First Quarter Results on April 30, 2015 2Cytokinetics to Announce First Quarter Results on April 30, 2015 3
... 8 LifeNet Health, a leading allograft bio-implant company, ... Tendon, both offering new options for ligament reconstruction. ... new bio-medical implants offer sports medicine physicians another alternative ... Tendon can be used in the reconstruction of either ...
... Dec. 8 Building on its flagship,suite of ... the Pyxis(R) MedStation(R) 4000 and an industry-first Performance,Analytics ... help improve medication safety. , ... medication dispensing system,offers new features that can help ...
... in B-Precursor Acute Lymphoblastic Leukemia Show that Blinatumomab is ... , BETHESDA, Md., Dec. 8 ... company developing novel, proprietary antibodies for the treatment of ... data from a phase 2 clinical trial of BiTE(R) ...
Cached Biology Technology:LifeNet Health Introduces New Sports Medicine Bio-Implants 2Cardinal Health Launches Pyxis(R) MedStation(R) 4000; Introduces Industry-First Service to Interpret Dispensing and Infusion Data 2Cardinal Health Launches Pyxis(R) MedStation(R) 4000; Introduces Industry-First Service to Interpret Dispensing and Infusion Data 3Data Presented at ASH Annual Meeting Indicates the Potential of T-Cell Engaging BiTE Antibody Blinatumomab as a Consolidation Treatment for Aggressive Leukemias 2Data Presented at ASH Annual Meeting Indicates the Potential of T-Cell Engaging BiTE Antibody Blinatumomab as a Consolidation Treatment for Aggressive Leukemias 3Data Presented at ASH Annual Meeting Indicates the Potential of T-Cell Engaging BiTE Antibody Blinatumomab as a Consolidation Treatment for Aggressive Leukemias 4Data Presented at ASH Annual Meeting Indicates the Potential of T-Cell Engaging BiTE Antibody Blinatumomab as a Consolidation Treatment for Aggressive Leukemias 5
(Date:3/24/2015)... --  NexID Biometrics LLC, whose spoof-mitigation technology boosts ... the beginning of shipments of version 2.0 of its ... based in Potsdam, N.Y. , is ... began here today at the Walter E. Washington Convention ... SDK boosts the accuracy rate range to 96.5 to ...
(Date:3/23/2015)... March 23, 2015 SoundView Technology Group issues a ... NXTD ) Wocket smart wallet. SoundView was one of the ... their experience with the Wocket in multiple scenarios and outlets. ... Foods and other retailers, making both debit and credit card ... also says, "If the company meets their plans in 2015, ...
(Date:3/23/2015)... 2015  In the 2014 fiscal year, irs.gov recorded ... This figure accounts for a fraction of the estimated ... Report, exceeds $11 billion globally. The polygraph has traditionally ... has occurred. Investor Mark Saint Juste along ... Paolella partnered to administer the test in a ...
Breaking Biology News(10 mins):NexID Begins Shipments Of Version 2.0 Fake-Finger-Detection Solution 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 3Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 4Polygraph Test Now Used to Protect Investors From Fraud 2Polygraph Test Now Used to Protect Investors From Fraud 3
... work and scientific adventure, marine explorers from more than ... Laboratory (MBL), today delivered the first global Census of ... and hides in the world,s oceans. In one of ... scientists spent over 9,000 days at sea on more ...
... survived for more than 400 million years, the horseshoe ... overharvest and habitat destruction. However, climatic changes may,also play ... how sensitive horseshoe crab populations are to natural climate ... Molecular Ecology . The horseshoe crab is ...
... Jerusalem, October 4, 2010 Researchers at the Hebrew University ... body that play a key role in controlling bone density, ... drug for prevention and treatment of osteoporosis and other bone ... researchers have just been published in the American journal ...
Cached Biology News:MBL scientists reveal findings of World Ocean Microbe Census 2MBL scientists reveal findings of World Ocean Microbe Census 3Climate change affects horseshoe crab numbers 2Hebrew University research holds promise for development of new osteoporosis drug 2
... an internal standard for the quantification of ... 5-OxoETE is a polyunsaturated keto acid formed ... neutrophils. It stimulates cytosolic calcium levels in ... 5-OxoETE selectively stimulates the migration and degranulation ...
... a 10.0 kb Autographa californica (AcNPV) polyhedrin ... AcNPV polyhedrin promoter and two AcNPV p10 ... a Sma I cloning site, followed by ... inverted polyhedrin promoter has been inserted containing ...
BD BioCoat Osteologic Coverslips that have been sterilized by ETO gas. Coating : Osteologic&trade ,Thickness : 0.16 mm ,Diameter : 12.7 mm ,Gridded : No ...
Mouse monoclonal antibody to ACP2 - acid phosphatase 2, lysosomal...
Biology Products: