Conventional THz Source (Top) and New Source (Bottom) (IMAGE)

Forschungszentrum Juelich

Conventional THz Source (Top) and New Source (Bottom)

Caption

Conventional THz source (top): Two laser pulses with different frequencies are focused on a gas target. The electrons thus released have a slow drifting motion, which is emitted as THz radiation. New source (bottom): A multi-tesla magnetic field along the propagation direction of the laser forces the released electrons into a fast orbit and to thus function as a short-wave (sub-mm) radiation antenna.

Credit

Forschungszentrum Julich

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