On-chip integrated laser-driven particle accelerator

Sapra, Neil V.; Yang, Ki Youl; Vercruysse, Dries; Leedle, Kenneth J.; Black, Dylan S.; England, R. Joel; Su, Logan; Trivedi, Rahul; Miao, Yu; Solgaard, Olav; Byer, Robert L.; Vučković, Jelena

doi:10.1126/science.aay5734

Title: On-chip integrated laser-driven particle accelerator

Journal Article · Fri Jan 03 00:00:00 EST 2020 · Science

DOI:https://doi.org/10.1126/science.aay5734· OSTI ID:1580805

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; Leedle, Kenneth J.; Black, Dylan S.;

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; Trivedi, Rahul;

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Particle accelerators represent an indispensable tool in science and industry. However, the size and cost of conventional radio-frequency accelerators limit the utility and reach of this technology. Dielectric laser accelerators (DLAs) provide a compact and cost-effective solution to this problem by driving accelerator nanostructures with visible or near-infrared pulsed lasers, resulting in a 10⁴reduction of scale. Current implementations of DLAs rely on free-space lasers directly incident on the accelerating structures, limiting the scalability and integrability of this technology. In this article, we present an experimental demonstration of a waveguide-integrated DLA that was designed using a photonic inverse-design approach. By comparing the measured electron energy spectra with particle-tracking simulations, we infer a maximum energy gain of 0.915 kilo–electron volts over 30 micrometers, corresponding to an acceleration gradient of 30.5 mega–electron volts per meter. On-chip acceleration provides the possibility for a completely integrated mega–electron volt-scale DLA.

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Research Organization:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC); Gordon and Betty Moore Foundation; European Commission (EC); National Science Foundation (NSF)

Grant/Contract Number:: AC02-76SF00515; SC0009914; GBMF4744; 665501; ECCS-1542152

OSTI ID:: 1580805

Alternate ID(s):: OSTI ID: 1604558

Journal Information:: Science, Journal Name: Science Vol. 367 Journal Issue: 6473; ISSN 0036-8075

Publisher:: AAASCopyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 116 works

Citation information provided by
Web of Science

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