Dielectric laser electron acceleration in a dual pillar grating with a distributed Bragg reflector

Yousefi P, Schönenberger N, McNeur J, Kozak M, Niedermayer U, Hommelhoff P (2019)

Publication Language: English

Publication Type: Journal article, Letter

Publication year: 2019

Journal

Book Volume: 44

Pages Range: 1520-1523

Journal Issue: 6

URI: https://arxiv.org/abs/1905.05489

DOI: 10.1364/OL.44.001520

Abstract

We report on the efficacy of a novel design for dielectric laser accelerators by adding a distributed Bragg reflector (DBR) to a dual pillar grating accelerating structure. This mimics a double-sided laser illumination, resulting in an enhanced longitudinal electric field while reducing the deflecting transverse effects when compared to single-sided illumination. We improve the coupling efficiency of the incident electric field into the accelerating mode by 57%. The 12 μm long structures accelerate sub-relativistic 28 keV electrons with gradients of up to 200 MeV/m in theory and 133 MeV/m in practice. This Letter shows how lithographically produced nano-structures help to make novel laser accelerators more efficient.

Authors with CRIS profile

Involved external institutions

Technische Universität Darmstadt Germany (DE)

How to cite

APA:

Yousefi, P., Schönenberger, N., McNeur, J., Kozak, M., Niedermayer, U., & Hommelhoff, P. (2019). Dielectric laser electron acceleration in a dual pillar grating with a distributed Bragg reflector. Optics Letters, 44(6), 1520-1523. https://doi.org/10.1364/OL.44.001520

MLA:

Yousefi, Peyman, et al. "Dielectric laser electron acceleration in a dual pillar grating with a distributed Bragg reflector." Optics Letters 44.6 (2019): 1520-1523.

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