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Title: On-Chip Laser-Power Delivery System for Dielectric Laser Accelerators

Abstract

We propose an on-chip optical-power delivery system for dielectric laser accelerators based on a fractal “tree-network” dielectric waveguide geometry. Here, this system replaces experimentally demanding free-space manipulations of the driving laser beam with chip-integrated techniques based on precise nanofabrication, enabling access to orders-of-magnitude increases in the interaction length and total energy gain for these miniature accelerators. Based on computational modeling, in the relativistic regime, our laser delivery system is estimated to provide 21 keV of energy gain over an acceleration length of 192 μm with a single laser input, corresponding to a 108-MV/m acceleration gradient. The system may achieve 1 MeV of energy gain over a distance of less than 1 cm by sequentially illuminating 49 identical structures. These findings are verified by detailed numerical simulation and modeling of the subcomponents, and we provide a discussion of the main constraints, challenges, and relevant parameters with regard to on-chip laser coupling for dielectric laser accelerators.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [3];  [3]
  1. Stanford Univ., CA (United States)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  3. Purdue Univ., West Lafayette, IN (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE; Gordon and Betty Moore Foundation
OSTI Identifier:
1458469
Grant/Contract Number:  
AC02-76SF00515; GBMF4744
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Applied
Additional Journal Information:
Journal Volume: 9; Journal Issue: 5; Journal ID: ISSN 2331-7019
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Hughes, Tyler W., Tan, Si, Zhao, Zhexin, Sapra, Neil V., Leedle, Kenneth J., Deng, Huiyang, Miao, Yu, Black, Dylan S., Solgaard, Olav, Harris, James S., Vuckovic, Jelena, Byer, Robert L., Fan, Shanhui, England, R. Joel, Lee, Yun Jo, and Qi, Minghao. On-Chip Laser-Power Delivery System for Dielectric Laser Accelerators. United States: N. p., 2018. Web. doi:10.1103/physrevapplied.9.054017.
Hughes, Tyler W., Tan, Si, Zhao, Zhexin, Sapra, Neil V., Leedle, Kenneth J., Deng, Huiyang, Miao, Yu, Black, Dylan S., Solgaard, Olav, Harris, James S., Vuckovic, Jelena, Byer, Robert L., Fan, Shanhui, England, R. Joel, Lee, Yun Jo, & Qi, Minghao. On-Chip Laser-Power Delivery System for Dielectric Laser Accelerators. United States. doi:10.1103/physrevapplied.9.054017.
Hughes, Tyler W., Tan, Si, Zhao, Zhexin, Sapra, Neil V., Leedle, Kenneth J., Deng, Huiyang, Miao, Yu, Black, Dylan S., Solgaard, Olav, Harris, James S., Vuckovic, Jelena, Byer, Robert L., Fan, Shanhui, England, R. Joel, Lee, Yun Jo, and Qi, Minghao. Mon . "On-Chip Laser-Power Delivery System for Dielectric Laser Accelerators". United States. doi:10.1103/physrevapplied.9.054017. https://www.osti.gov/servlets/purl/1458469.
@article{osti_1458469,
title = {On-Chip Laser-Power Delivery System for Dielectric Laser Accelerators},
author = {Hughes, Tyler W. and Tan, Si and Zhao, Zhexin and Sapra, Neil V. and Leedle, Kenneth J. and Deng, Huiyang and Miao, Yu and Black, Dylan S. and Solgaard, Olav and Harris, James S. and Vuckovic, Jelena and Byer, Robert L. and Fan, Shanhui and England, R. Joel and Lee, Yun Jo and Qi, Minghao},
abstractNote = {We propose an on-chip optical-power delivery system for dielectric laser accelerators based on a fractal “tree-network” dielectric waveguide geometry. Here, this system replaces experimentally demanding free-space manipulations of the driving laser beam with chip-integrated techniques based on precise nanofabrication, enabling access to orders-of-magnitude increases in the interaction length and total energy gain for these miniature accelerators. Based on computational modeling, in the relativistic regime, our laser delivery system is estimated to provide 21 keV of energy gain over an acceleration length of 192 μm with a single laser input, corresponding to a 108-MV/m acceleration gradient. The system may achieve 1 MeV of energy gain over a distance of less than 1 cm by sequentially illuminating 49 identical structures. These findings are verified by detailed numerical simulation and modeling of the subcomponents, and we provide a discussion of the main constraints, challenges, and relevant parameters with regard to on-chip laser coupling for dielectric laser accelerators.},
doi = {10.1103/physrevapplied.9.054017},
journal = {Physical Review Applied},
number = 5,
volume = 9,
place = {United States},
year = {2018},
month = {5}
}

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Cited by: 11 works
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