Generation of electromagnetic pulses from plasma channels induced by femtosecond light strings

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Cheng, Chung-Chieh ; Wright, E. M. ; Moloney, J. V. (2000)
  • Related identifiers: doi: 10.1103/PhysRevLett.87.213001
  • Subject: Physics - Optics | Physics - Plasma Physics
    arxiv: Physics::Optics | Physics::Atomic Physics | Physics::Plasma Physics

We present a model that elucidates the physics underlying the generation of an electromagnetic pulse from a femtosecond laser induced plasma channel. The radiation pressure force from the laser pulse spatially separates the ionized electrons from the heavier ions and the induced dipole moment subsequently oscillates at the plasma frequency and radiates an electromagnetic pulse.
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