Latest Attosecond Stories

A Feeling For The 'Light' Wave
2014-01-13 12:55:37

Max-Planck-Institute of Quantum Optics A team in the Laboratory for Attosecond Physics (LAP) at the Max-Planck-Institute of Quantum Optics has taken another step toward the achievement of complete control over the waveform of pulsed laser light. Together with colleagues based at LMU and the Technische Universität München (TUM), they have constructed a detector which provides a detailed picture of the waveforms of laser pulses that last for a few femtoseconds (1 fs = 10-15 seconds)....

2013-02-18 11:09:06

Berkeley Lab research at AAAS Meeting In the blink of an eye, more attoseconds have expired than the age of Earth measured in — minutes. A lot more. To be precise, an attosecond is one billionth of a billionth of a second. The attosecond timescale is where you must go to study the electron action that is the starting point of all of chemistry. Not surprisingly, chemists are most eager to explore it with X-rays, the region of the electromagnetic spectrum that can probe the core...

Electrons Frozen In Flight
2012-10-16 13:36:17

Using the world´s fastest laser pulses, which can freeze the ultrafast motion of electrons and atoms, UA physicists have caught the action of molecules breaking apart and electrons getting knocked out of atoms. Their research helps us better understand molecular processes and ultimately be able to control them in many possible applications. In 1878, a now iconic series of photographs instantly solved a long-standing mystery: Does a galloping horse touch the ground at all times? (It...

World's Shortest Laser Pulse Created By Researchers
2012-09-04 14:32:27

A University of Central Florida research team has created the world's shortest laser pulse and in the process may have given scientists a new tool to watch quantum mechanics in action — something that has been hidden from view until now. UCF Professor Zenghu Chang from the Department of Physics and the College of Optics and Photonics, led the effort that generated a 67-attosecond pulse of extreme ultraviolet light. The results of his research are published online under Early Posting...

Lighthouses May Help Illuminate The Tempestuous Sea
2012-04-30 08:46:21

Physicists have long chased an elusive goal: the ability to "freeze" and then study the motion of electrons in matter. Such experiments could help confirm theories of electron motion and yield insights into how and why chemical reactions take place. Now a collaboration of scientists from France and Canada has developed an elegant new method to study electrons' fleeting antics using isolated, precisely timed, and incredibly fast pulses of light. The team will describe the technique at the...

2012-03-16 09:37:52

A team of international researchers have fired ultra-fast shots of light at oxygen, nitrogen and carbon monoxide molecules as part of a development aimed at mapping the astonishingly quick movements of atoms within molecules, as well as the charges that surround them. The ultra-short laser that spans only a few hundred attoseconds — an attosecond is equivalent to one quintillionth of a second — was fired in a sample of molecules and could pave the way towards imaging the...

2011-09-09 13:06:09

Mastering the fine structuring of ultrashort light fields An expedition through the fast-paced microscopic world of atoms reveals electrons that spin at enormous speeds and the gigantic forces that act on them. Monitoring the ultrafast motion of these electrons requires ultrashort flashes of light. However, in order to control them, the structure of these light flashes, or light pulses, needs to be tamed as well. This type of control over light pulses has now been achieved, for the first...

2011-03-09 14:51:41

INRS University, NRC Canada, and University of Ottawa make a scientific breakthrough Another step has been taken in matter imaging. By using very short flashes of light produced by a technology developed at the national infrastructure Advanced Laser Light Source (ALLS) located at INRS University, researchers have obtained groundbreaking information on the electronic structure of atoms and molecules by observing for the first time ever electronic correlations using the method of high harmonic...

2010-10-13 08:57:40

Air Force Office of Scientific Research-supported physicists at the University of California, Berkeley in collaboration with researchers from the Max Planck Institute of Quantum Optics and the U.S. Department of Energy's Lawrence Berkeley National Laboratory, became the first researchers to observe the motion of an atom's valence or outermost electrons in real-time by investigating the ejection of an electron from an atom by an intense laser pulse. In the experiments, an electron in a krypton...

Word of the Day
  • To take pains; labor assiduously with little progress.
This word comes from the Spanish 'pongale,' put it.