New regime of anomalous penetration of relativistically strong laser radiation into an overdense plasma

A New Regime of Anomalous Penetration of Relativistically Strong Laser Radiation into an Overdense Plasma

It is shown that penetration of relativistically intense laser light into an overdense plasma, accessible by self-induced transparency, occurs over a finite length only. The penetration length depends crucially on the overdense plasma parameter and increases with increasing incident intensity after exceeding the threshold for self-induced transparency. Exact analytical solutions describing the ...

Focus optimization of relativistic self-focusing for anomalous laser penetration into overdense plasmas (super-penetration)

Relativistic electron motion in a plasma due to an intense laser pulse modifies the refractive index and leads to two effects: relativistic induced transparency and relativistic self-focusing. A combination of the above two effects enables transmission of laser energy deep into plasmas which is useful for fast ignition of inertial fusion. This so-called super-penetration sensitively depends on ...

Electromagnetic energy penetration in the self-induced transparency regime of relativistic laser-plasma interactions.

Two qualitatively different scenarios for the penetration of relativistically intense laser radiation into an overdense plasma, accessible by self-induced transparency, are presented. In the first one, penetration of laser energy occurs by solitonlike structures moving into the plasma. This scenario occurs at plasma densities less than approximately 1.5 times the critical one (depending on ion ...

On the Generation of Strong Magnetic Fields in the Interaction of Ultraintense Short Laser Pulse with an Overdense Plasma Target

Study of Laser-Hole Boring into Overdense Plasmas.