Operating modes of dual-grating dielectric laser accelerators

In this work, we present a comprehensive theoretical description of the Lorentz force in dual-grating dielectric laser accelerators (DLA). Here we examine the dual-grating DLA under arbitrary illumination conditions, both single-side and dual-side drive. We improve upon previous descriptions of thes...

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Bibliographic Details
Published in:Physical review. Accelerators and beams 2020-11, Vol.23 (11), p.114001, Article 114001
Main Authors: Black, Dylan S., Zhao, Zhexin, Leedle, Kenneth J., Miao, Yu, Byer, Robert L., Fan, Shanhui, Solgaard, Olav
Format: Article
Language:English
Subjects:
Accelerators
Lorentz force
Streak cameras
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Summary:In this work, we present a comprehensive theoretical description of the Lorentz force in dual-grating dielectric laser accelerators (DLA). Here we examine the dual-grating DLA under arbitrary illumination conditions, both single-side and dual-side drive. We improve upon previous descriptions of these forces by providing a unified description of all possible operating modes of these devices, and classify the modes into three categories. In particular, we predict the existence of the previously observed “line modes” and a novel “elliptical mode”, provide an experimental demonstration of this new mode, and suggest a possible application for it in improving the resolution of attosecond-scale streak cameras. Finally, we examine several complementary methods of tuning a dual-grating DLA to a desired operating mode—particularly dual-drive phase rotation and translational offset of the grating teeth.
ISSN:2469-9888
2469-9888
DOI:10.1103/PhysRevAccelBeams.23.114001