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arXiv · 1707.07290

Ion acceleration with an ultra-intense two-frequency laser tweezer

Y. Wan·I. A. Andriyash·C. -H. Pai·J. F. Hua·C. J. Zhang·F. Li·Y. P. Wu·Z. Nie·W. B. Mori·W. Lu·V. Malka·C. Joshi
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Abstract

Ultra-intense lasers produce and manipulate plasmas, allowing to locally generate extremely high static and electromagnetic fields. This Letter presents a concept of an ultra-intense optical tweezer, where two counter-propagating circularly polarized intense lasers of different frequencies collide on a nano-foil. Interfering inside the foil, lasers produce a beat wave, which traps and moves plasma electrons as a thin sheet with an optically controlled velocity. The electron displacement creates a plasma micro-capacitor with an extremely strong electrostatic field, that efficiently generates narrow-energy-spread ion beams from the multi-species targets, e.g. protons from the hydrocarbon foils. The proposed ion accelerator concept is explored theoretically and demonstrated numerically with the multi-dimensional particle-in-cell simulations.

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Y. Wan, I. A. Andriyash, C. -H. Pai, J. F. Hua, C. J. Zhang, F. Li, Y. P. Wu, Z. Nie, W. B. Mori, W. Lu, V. Malka, C. Joshi. 2017-07-23. Ion acceleration with an ultra-intense two-frequency laser tweezer. https://arxiv.org/abs/1707.07290

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