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Extreme focusing of high power x-ray lasers to relativistic intensity with a concave plasma lens
- Source :
- Physical Review Research, Vol 5, Iss 1, p 013118 (2023)
- Publication Year :
- 2023
- Publisher :
- American Physical Society, 2023.
-
Abstract
- The intensity of present x-ray lasers is still far from relativistic due to equipment damage by the powerful radiation involved in the generation process. We propose to use a microscopic concave plasma lens to tightly focus terawatt x-ray pulses to relativistic intensity by avoiding the destructive instabilities arising from the laser-plasma interaction in the focusing process. Three-dimensional particle-in-cell simulations show that an intense x-ray laser pulse can be focused to a tiny spot of the wavelength scale at ultrahigh intensity while well preserving its original spatiotemporal profile. The resulting pulse can exceed the relativistic intensity threshold [(1.37×10^{24}/λ_{nm}^{2})W/cm^{2}, with λ_{nm} being the wavelength normalized by nanometers] by two orders of magnitude. Such intense nano-sized x-ray pulses can be useful for exploring nonlinear phenomena in the strong-field quantum electrodynamics regime, as well as in high-energy-density science and astrophysics.
Details
- Language :
- English
- ISSN :
- 26431564
- Volume :
- 5
- Issue :
- 1
- Database :
- Directory of Open Access Journals
- Journal :
- Physical Review Research
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.6c398d23f593420b96daa3871b0c17b9
- Document Type :
- article
- Full Text :
- https://doi.org/10.1103/PhysRevResearch.5.013118