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arXiv · 1311.5791

Two-Color-Laser-Driven Direct Electron Acceleration in Infinite Vacuum

Liang Jie Wong·Franz X. Kärtner
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Abstract

We propose a direct electron acceleration scheme that uses a two-color pulsed radially-polarized laser beam. The two-color scheme achieves electron acceleration exceeding 90% of the theoretical energy gain limit, over twice of what is possible with a one-color pulsed beam of equal total energy and pulse duration. The scheme succeeds by exploiting the Gouy phase shift to cause an acceleration-favoring interference of fields only as the electron enters its effectively final accelerating cycle. Optimization conditions and power scaling characteristics are discussed.

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Liang Jie Wong, Franz X. Kärtner. 2013-11-22. Two-Color-Laser-Driven Direct Electron Acceleration in Infinite Vacuum. https://doi.org/10.1364/ol.36.000957

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