The resulting collective oscillation of the crystal lattice was traced stroboscopically using ultrashort laser pulses; the blue lines show the measured data. (IMAGE)

Helmholtz-Zentrum Dresden-Rossendorf

The resulting collective oscillation of the crystal lattice was traced stroboscopically using ultrashort laser pulses; the blue lines show the measured data.

Caption

Like on a Ferris wheel, a powerful terahertz laser drives the atoms of a crystal along precise circular paths. The resulting collective oscillation of the crystal lattice was traced stroboscopically using ultrashort laser pulses; the blue lines show the measured data. Surprisingly, the oscillation rotates in the opposite direction.

Credit

O. Minakova/ S.F. Maehrlein/ B. Schröder/ HZDR

Usage Restrictions

none

License

Original content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.