Role of Direct Laser Acceleration of Electrons in a Laser Wakefield Accelerator with Ionization Injection
Abstract
We show the first experimental demonstration that electrons being accelerated in a laser wakefield accelerator operating in the forced or blowout regimes gain significant energy from both the direct laser acceleration (DLA) and the laser wakefield acceleration mechanisms. Supporting full-scale 3D particle-in-cell simulations elucidate the role of the DLA of electrons in a laser wakefield accelerator when ionization injection of electrons is employed. An explanation is given for how electrons can maintain the DLA resonance condition in a laser wakefield accelerator despite the evolving properties of both the drive laser and the electrons. The produced electron beams exhibit characteristic features that are indicative of DLA as an additional acceleration mechanism.
- Authors:
-
- Univ. of California, Los Angeles, CA (United States). Dept. of Electrical Engineering
- Univ. of California, Los Angeles, CA (United States). Dept. of Physics and Astronomy; Univ. of Lisbon (Portugal). Instituto Superior Técnico. Inst. of Plasmas and Nuclear Fusion. Group of Lasers and Plasmas
- Univ. of California, Los Angeles, CA (United States). Dept. of Physics and Astronomy
- Univ. of California, Los Angeles, CA (United States). Dept. of Electrical Engineering. Dept. of Physics and Astronomy
- Publication Date:
- Research Org.:
- Univ. of California, Los Angeles, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1536481
- Alternate Identifier(s):
- OSTI ID: 1343353
- Grant/Contract Number:
- SC0010064
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 118; Journal Issue: 6; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS
Citation Formats
Shaw, J. L., Lemos, N., Amorim, L. D., Vafaei-Najafabadi, N., Marsh, K. A., Tsung, F. S., Mori, W. B., and Joshi, C. Role of Direct Laser Acceleration of Electrons in a Laser Wakefield Accelerator with Ionization Injection. United States: N. p., 2017.
Web. doi:10.1103/physrevlett.118.064801.
Shaw, J. L., Lemos, N., Amorim, L. D., Vafaei-Najafabadi, N., Marsh, K. A., Tsung, F. S., Mori, W. B., & Joshi, C. Role of Direct Laser Acceleration of Electrons in a Laser Wakefield Accelerator with Ionization Injection. United States. https://doi.org/10.1103/physrevlett.118.064801
Shaw, J. L., Lemos, N., Amorim, L. D., Vafaei-Najafabadi, N., Marsh, K. A., Tsung, F. S., Mori, W. B., and Joshi, C. Wed .
"Role of Direct Laser Acceleration of Electrons in a Laser Wakefield Accelerator with Ionization Injection". United States. https://doi.org/10.1103/physrevlett.118.064801. https://www.osti.gov/servlets/purl/1536481.
@article{osti_1536481,
title = {Role of Direct Laser Acceleration of Electrons in a Laser Wakefield Accelerator with Ionization Injection},
author = {Shaw, J. L. and Lemos, N. and Amorim, L. D. and Vafaei-Najafabadi, N. and Marsh, K. A. and Tsung, F. S. and Mori, W. B. and Joshi, C.},
abstractNote = {We show the first experimental demonstration that electrons being accelerated in a laser wakefield accelerator operating in the forced or blowout regimes gain significant energy from both the direct laser acceleration (DLA) and the laser wakefield acceleration mechanisms. Supporting full-scale 3D particle-in-cell simulations elucidate the role of the DLA of electrons in a laser wakefield accelerator when ionization injection of electrons is employed. An explanation is given for how electrons can maintain the DLA resonance condition in a laser wakefield accelerator despite the evolving properties of both the drive laser and the electrons. The produced electron beams exhibit characteristic features that are indicative of DLA as an additional acceleration mechanism.},
doi = {10.1103/physrevlett.118.064801},
journal = {Physical Review Letters},
number = 6,
volume = 118,
place = {United States},
year = {Wed Feb 08 00:00:00 EST 2017},
month = {Wed Feb 08 00:00:00 EST 2017}
}
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