Saturday, September 8, 2012

the shortest laser pulse archived to date!

The laser, which first implementation dates from 1960, is present in the industry (welding, precision cuts, etc.), healt (eye operations) or telecommunications (thanks to the optical fiber or even outdoors) and indeed are still the basis of much research from multiple disciplines and areas of expertise. If we mentioned a few weeks ago that the Lawrence Livermore National Laboratory in the United States had established a record with the most potent laser (with 500 trillion watts), a research team from the University of Central Florida has published an article in which they describe a rather unique discovery: the shortest laser pulse achieved to date, only 67 attosecond pulse.

67 attosecond?? The attosecond is a unit of time equal to one trillionth of a second, therefore, we can get an idea of ​​how long it has taken so small pulse generated by the team of researchers from Florida belonging to the area of ​​Optics and Photonics. In fact, the finding of the equipment exceeds the previous high mark was at 80 attosecond.

    We might be able to see the processes that quantum mechanics descrives

A laser pulse of its kind, researchers say, may be likened to a camera flash, a glimmer with which "illuminate" a dark area to capture an image and, basically, is what could be done with this laser observe processes occurring in nature. For example, the laser could be used to monitor in real time the movement of electrons in their orbits (and for this purpose have had to design a receiver too "sensitive" to the detection of this beam of light of such short duration).

    This finding may open a new door to a world hidden far where we could see how they move the electrons in atoms and molecules, thus following the chemical reactions that take place in these

image: Univercity of Central Florida 


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