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Title: On-chip integrated laser-driven particle accelerator

Abstract

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 10 4 reduction 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. 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.

Authors:
ORCiD logo; ORCiD logo; ORCiD logo; ; ; ORCiD logo; ORCiD logo; ; ORCiD logo; ORCiD logo; ORCiD logo; ORCiD logo
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1580805
Grant/Contract Number:  
AC02-76SF00515; SC0009914
Resource Type:
Published Article
Journal Name:
Science
Additional Journal Information:
Journal Name: Science Journal Volume: 367 Journal Issue: 6473; Journal ID: ISSN 0036-8075
Publisher:
American Association for the Advancement of Science (AAAS)
Country of Publication:
United States
Language:
English

Citation Formats

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., and Vučković, Jelena. On-chip integrated laser-driven particle accelerator. United States: N. p., 2020. Web. doi:10.1126/science.aay5734.
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. On-chip integrated laser-driven particle accelerator. United States. doi:10.1126/science.aay5734.
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., and Vučković, Jelena. Thu . "On-chip integrated laser-driven particle accelerator". United States. doi:10.1126/science.aay5734.
@article{osti_1580805,
title = {On-chip integrated laser-driven particle accelerator},
author = {Sapra, Neil V. and Yang, Ki Youl and Vercruysse, Dries and Leedle, Kenneth J. and Black, Dylan S. and England, R. Joel and Su, Logan and Trivedi, Rahul and Miao, Yu and Solgaard, Olav and Byer, Robert L. and Vučković, Jelena},
abstractNote = {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 10 4 reduction 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. 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.},
doi = {10.1126/science.aay5734},
journal = {Science},
number = 6473,
volume = 367,
place = {United States},
year = {2020},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1126/science.aay5734

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