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Published on: January 28, 2021
Efficient laser-ion acceleration from closely stacked ultrathin foils.
T Kluge1, W Enghardt, S D Kraft
1Forschungszentrum Dresden-Rossendorf eV, Dresden, Germany. t.kluge@fzd.de
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|September 28, 2010
Summary
A new method uses multiple ultrathin foils to boost proton acceleration with intense laser pulses. This technique enhances maximum proton kinetic energy by 30% compared to single-foil acceleration.
Area of Science:
- Plasma Physics
- Laser-driven particle acceleration
Background:
- Laser-driven acceleration of protons is crucial for applications in medicine and research.
- Existing methods face limitations in energy gain and efficiency.
Purpose of the Study:
- To propose and validate a novel scheme for efficient proton acceleration using multiple ultrathin foils.
- To enhance the maximum proton kinetic energy achievable with intense laser pulses.
Main Methods:
- Development of a dynamical model to determine optimal foil thickness and spacing.
- Extensive two-dimensional (2D) particle-in-cell simulations to verify the model.
- Irradiation of stacked ultrathin foils with a single high-intensity ultrashort laser pulse.
Main Results:
- The proposed scheme efficiently accelerates protons using multiple foils.
- A dynamical model accurately predicts optimal parameters for foil thickness and spacing.
- Two-dimensional particle-in-cell simulations confirm model predictions.
- A 30% enhancement in maximum proton kinetic energy was observed for the two-foil configuration compared to a single foil.
Conclusions:
- The multiple ultrathin foil scheme offers a significant improvement in laser-driven proton acceleration.
- The dynamical model provides a precise tool for optimizing this acceleration technique.
- This method holds promise for advancing laser-driven particle acceleration.
