Radiation pressure acceleration of protons to 93 MeV with circularly polarized petawatt laser pulses
- Type
- Article
- Citation
- Physics of Plasmas, v.23, no.7
- Issued Date
- 2016-07
- Abstract
- The radiation pressure acceleration (RPA) of charged particles has been a challenging task in laser-driven proton/ion acceleration due to its stringent requirements in laser and target conditions. The realization of radiation-pressure-driven proton acceleration requires irradiating ultrathin targets with an ultrahigh contrast and ultraintense laser pulses. We report the generation of 93-MeV proton beams achieved by applying 800-nm 30-fs circularly polarized laser pulses with an intensity of 6.1 × 10 20 W / cm 2 to 15-nm-thick polymer targets. The radiation pressure acceleration was confirmed from the obtained optimal target thickness, quadratic energy scaling, polarization dependence, and three-dimensional particle-in-cell simulations. We expect this clear demonstration of RPA to facilitate the realization of laser-driven proton/ion sources delivering energetic and short-pulse particle beams for novel applications. © 2016 Author(s).
- Publisher
- American Institute of Physics
- ISSN
- 1070-664X
- Appears in Collections:
- Department of Physics and Photon Science > 1. Journal Articles
Research Institutes > 1. Journal Articles
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