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arXiv · 1407.6688

Dielectric laser acceleration of electrons in the vicinity of single and double grating structures - theory and simulations

John Breuer·Joshua McNeur·Peter Hommelhoff
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Abstract

Dielectric laser acceleration of electrons close to a fused-silica grating has recently been observed (Peralta et al., Nature 503, 91 (2013); Breuer, Hommelhoff, PRL 111, 134803 (2013)). Here we present the theoretical description of the near-fields close to such a grating that can be utilized to accelerate non-relativistic electrons. We also show simulation results of electrons interacting with such fields in a single and double grating structure geometry and discuss dephasing effects that have to be taken into account when designing a photonic-structure-based accelerator for non-relativistic electrons. We further model the space charge effect using the paraxial ray equation and discuss the resulting expected peak currents for various parameter sets.

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John Breuer, Joshua McNeur, Peter Hommelhoff. 2014-07-24. Dielectric laser acceleration of electrons in the vicinity of single and double grating structures - theory and simulations. https://doi.org/10.1088/0953-4075/47/23/234004

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