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Updated: Jul 6, 2026
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Automated Delivery of Microfabricated Targets for Intense Laser Irradiation Experiments
Published on: January 28, 2021
Dynamic control of laser-produced proton beams
1The Queen's University of Belfast, Belfast BT7 1NN, United Kingdom.
Physical Review Letters
|March 21, 2008
Summary
Intense laser-driven proton beams are controlled using ultrastrong electrostatic fields. Tailored targets reduce proton beam divergence, increasing flux and preserving quality for advanced applications.
Area of Science:
- Plasma Physics
- Laser-Particle Acceleration
- Beam Optics
Background:
- Intense laser-matter interactions generate energetic proton beams.
- Controlling proton beam divergence and flux is crucial for applications.
- Existing methods for beam control are limited.
Purpose of the Study:
- To investigate the control of laser-driven proton emission characteristics.
- To utilize ultrastrong electrostatic fields for proton beam manipulation.
- To enhance proton beam quality and flux through target design.
Main Methods:
- Employing ultrastrong electrostatic fields (approx. 10(9) V/m) on a picosecond timescale.
- Exploiting high target potentials (multi-MV) during laser interaction.
- Designing and utilizing suitably shaped targets for field structuring.
Main Results:
- Demonstrated control over proton emission characteristics.
- Achieved reduction in proton beam divergence and increased proton flux.
- Preserved high beam quality and demonstrated tunable focusing power.
- Showcased the design of achromatic electrostatic lenses for proton beams.
Conclusions:
- Ultrastrong electrostatic fields offer precise control over laser-driven protons.
- Target shaping is a key factor in optimizing proton beam properties.
- This method enables collimation and advanced beam manipulation for future applications.
