Controlling femtosecond-laser-driven shock-waves in hot, dense plasma

Direct visualization of laser-driven focusing shock waves.

Direct real-time visualization and measurement of laser-driven shock generation, propagation, and 2D focusing in a sample are demonstrated. A substantial increase of the pressure at the convergence of the cylindrical acoustic shock front is observed experimentally and simulated numerically. Single-shot acquisitions using a streak camera reveal that at the convergence of the shock wave in water ...

Terahertz acoustics in hot dense laser plasmas.

We present a hitherto unobserved facet of hydrodynamics, namely the generation of an ultrahigh frequency acoustic disturbance in the terahertz frequency range, whose origins are purely hydrodynamic in nature. The disturbance is caused by differential flow velocities down a density gradient in a plasma created by a 30 fs, 800 nm high-intensity laser (∼5×10(16)  W/cm(2)). The picosecond scale obs...

Resonantly laser-driven plasma waves for electron acceleration.

Nonlinear plasma waves resonantly driven by optimized laser pulse trains.

Femtosecond x rays from laser-plasma accelerators

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