Parametric study of cycle modulation in laser driven ion beams and acceleration field retrieval at femtosecond timescale

  title={Parametric study of cycle modulation in laser driven ion beams and acceleration field retrieval at femtosecond timescale},
  author={Matthias Schnurer and Julia Braenzel and Andrea Lubcke and Alexander Alexeyevich Andreev},
  journal={Physical Review Accelerators and Beams},
High frequency modulations appearing in the kinetic energy distribution of laser accelerated ions are proposed for retrieving the acceleration field dynamics at femtosecond time scale. Such an approach becomes possible if the laser-cycling field modulates the particle density in the ion spectra and produces quasi time stamps for analysis. We investigate target and laser parameters determining this effect and discuss the dependencies of the observed modulation. Our findings refine a basic… 

Figures from this paper



The beat in laser-accelerated ion beams

Regular modulation in the ion velocity distribution becomes detectable if intense femtosecond laser pulses with very high temporal contrast are used for target normal sheath acceleration of ions.

Effect of a laser prepulse on fast ion generation in the interaction of ultra-short intense laser pulses with a limited-mass foil target

Fast electrons generated in ultra-intense laser interaction with a solid target can produce multi-MeV ions from laser-induced plasmas. These fast ions can have different applications ranging from ion

Tracing ultrafast dynamics of strong fields at plasma-vacuum interfaces with longitudinal proton probing

If regions of localized strong fields at plasma-vacuum interfaces are probed longitudinally with laser accelerated proton beams their velocity distribution changes sensitively and very fast. Its

High efficiency proton beam generation through target thickness control in femtosecond laser-plasma interactions

Bright proton beams with maximum energies of up to 30 MeV have been observed in an experiment investigating ion sheath acceleration driven by a short pulse (<50 fs) laser. The scaling of maximum

Radiation pressure acceleration: The factors limiting maximum attainable ion energy

Radiation pressure acceleration (RPA) is a highly efficient mechanism of laser-driven ion acceleration, with near complete transfer of the laser energy to the ions in the relativistic regime.

Ion Acceleration - Target Normal Sheath Acceleration

Energetic ions have been observed since the very first laser-plasma experiments.Their origin was found to be the charge separation of electrons heated by thelaser, which transfers energy to the ions

3D kinetic simulation of super-intense laser-induced anomalous transport

A three-dimensional Particle-In-Cell simulation describing the interaction of an intense laser beam with a plasma slab is presented. It is observed that the laser-generated electron current decays

Electron temperature scaling in laser interaction with solids.

It is found that the scaling of electron energy with laser intensity can be derived from a general Lorentz invariant electron distribution ansatz that does not rely on a specific model of energy absorption.

Prospects of target nanostructuring for laser proton acceleration

The authors' experimental data show that the nanostructures lead to a significant enhancement of absorption over the entire range of laser plasma conditions investigated, and at conditions that do not allow for efficient laser absorption by plane targets, nanostructure-induced absorption increase is found to significantly enhance the proton cutoff energy and conversion efficiency.