Sciences & Technology
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Laser pulses used to track motion of electrons in metals with attosecond precision

Laser pulses used to track motion of electrons in metals with attosecond precision | Sciences & Technology | Scoop.it

"It is easy to measure electric current. But it is extremely hard to watch the individual electrons which make up this current. Electrons race through the metal with a speed of several million meters per second, and the distance they have to cover between two adjacent atoms is very small. This means that tiny time intervals have to be resolved in order to watch the electrons dashing through the metal.

 

Measurements in Garching (Germany) and theoretical calculations at the Vienna University of Technology (Austria) have now made this possible. As it turns out, the motion of the electrons in the metal is remarkably similar to ballistic motion in free space. The results have now been published in the journal Nature..."

 

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Curiosity : les tirs laser de ChemCam sont meilleurs que prévus !

Curiosity : les tirs laser de ChemCam sont meilleurs que prévus ! | Sciences & Technology | Scoop.it
Avec Curiosity, l'utilisation d’un laser, pour la première fois sur Mars, enchante les scientifiques.
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Germanium is Now Suitable for Lasers

Germanium is Now Suitable for Lasers | Sciences & Technology | Scoop.it
Good news for the computer industry: a team of researchers has managed to make germanium suitable for lasers.
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