Latest Femtosecond Stories

2009-09-01 13:28:07

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-Universität (LMU) in...

2008-12-12 15:15:13

New technique allows real-time observation of molecules during chemical reactions. A novel x-ray technique allowing the observation of molecular motion on a time scale never reached before has been developed by a team of researchers from EPFL and the Paul Scherrer Institute (PSI) in Switzerland. Results of the research led by Professor Majed Chergui, head of EPFL's laboratory of Ultrafast Spectroscopy in collaboration with the FEMTO group at PSI appear online December 11 in the journal...

2005-10-20 15:20:52

Using laser pulses that last just 70 femtoseconds (quadrillionths of a second), physicists have observed in greater detail than ever before what happens when atoms collide. The experiments at JILA, a joint institute of the National Institute of Standards and Technology (NIST) and the University of Colorado at Boulder, confirm a decades-old theory of how atoms--like tennis balls--briefly lose form and energy when they hit something. The results will help scientists study other atomic-scale...

Word of the Day
  • An evil spirit; a devil.
  • A nightmare.
  • In astrology, the twelfth house of a scheme or figure of the heavens: so called from its signifying dreadful things, such as secret enemies, great losses, imprisonment, etc.
'Cacodemon' comes from a Greek term meaning 'evil genius.'