A5046288489- Laser-Plasma Interactions and Diagnostics
- Advanced X-ray Imaging Techniques
- Laser-induced spectroscopy and plasma
- High-pressure geophysics and materials
- Laser Material Processing Techniques
- Nuclear Physics and Applications
- Laser Design and Applications
- Advanced Surface Polishing Techniques
- Electron and X-Ray Spectroscopy Techniques
General Atomics (United States)
2021-2022
We report on the increase in accelerated electron number and energy using compound parabolic concentrator (CPC) targets from a short-pulse ($\ensuremath{\sim}150$ fs), high-intensity ($>{10}^{18}$ W/${\mathrm{cm}}^{2}$), high-contrast ($\ensuremath{\sim}{10}^{8}$) laser-solid interaction. experimental measurements CPC where hot-electron temperature is enhanced up to $\ensuremath{\sim}9$ times when compared planar targets. The measured target...
Metal foils with precise thicknesses are required for use as laser targets in high energy density physics experiments. To achieve the micrometer scale tolerances accompanying these applications, authors have developed a ablation technique utilizing burst pulses from femtosecond operated concert high-speed galvo scanning system. For authors’ application, an optimum processing format consisted of 250 fs arranged pairs, pulse separation each pair equal to 400 ps and speeds (∼2000 mm/s). These...