Generation of stable subfemtosecond hard x-ray pulses with optimized nonlinear bunch compression
Abstract
In this paper, we propose a simple scheme that leverages existing x-ray free-electron laser hardware to produce stable single-spike, subfemtosecond x-ray pulses. By optimizing a high-harmonic radio-frequency linearizer to achieve nonlinear compression of a low-charge (20 pC) electron beam, we obtain a sharp current profile possessing a few-femtosecond full width at half maximum temporal duration. A reverse undulator taper is applied to enable lasing only within the current spike, where longitudinal space charge forces induce an electron beam time-energy chirp. Simulations based on the Linac Coherent Light Source parameters show that stable single-spike x-ray pulses with a duration less than 200 attoseconds can be obtained.
- Authors:
- Publication Date:
- Research Org.:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1181562
- Alternate Identifier(s):
- OSTI ID: 1215436
- Grant/Contract Number:
- AC02-76SF00515; AC02-05CH11231; 2011CB808301
- Resource Type:
- Published Article
- Journal Name:
- Physical Review Special Topics. Accelerators and Beams
- Additional Journal Information:
- Journal Name: Physical Review Special Topics. Accelerators and Beams Journal Volume: 17 Journal Issue: 12; Journal ID: ISSN 1098-4402
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Huang, Senlin, Ding, Yuantao, Huang, Zhirong, and Qiang, Ji. Generation of stable subfemtosecond hard x-ray pulses with optimized nonlinear bunch compression. United States: N. p., 2014.
Web. doi:10.1103/PhysRevSTAB.17.120703.
Huang, Senlin, Ding, Yuantao, Huang, Zhirong, & Qiang, Ji. Generation of stable subfemtosecond hard x-ray pulses with optimized nonlinear bunch compression. United States. https://doi.org/10.1103/PhysRevSTAB.17.120703
Huang, Senlin, Ding, Yuantao, Huang, Zhirong, and Qiang, Ji. Mon .
"Generation of stable subfemtosecond hard x-ray pulses with optimized nonlinear bunch compression". United States. https://doi.org/10.1103/PhysRevSTAB.17.120703.
@article{osti_1181562,
title = {Generation of stable subfemtosecond hard x-ray pulses with optimized nonlinear bunch compression},
author = {Huang, Senlin and Ding, Yuantao and Huang, Zhirong and Qiang, Ji},
abstractNote = {In this paper, we propose a simple scheme that leverages existing x-ray free-electron laser hardware to produce stable single-spike, subfemtosecond x-ray pulses. By optimizing a high-harmonic radio-frequency linearizer to achieve nonlinear compression of a low-charge (20 pC) electron beam, we obtain a sharp current profile possessing a few-femtosecond full width at half maximum temporal duration. A reverse undulator taper is applied to enable lasing only within the current spike, where longitudinal space charge forces induce an electron beam time-energy chirp. Simulations based on the Linac Coherent Light Source parameters show that stable single-spike x-ray pulses with a duration less than 200 attoseconds can be obtained.},
doi = {10.1103/PhysRevSTAB.17.120703},
journal = {Physical Review Special Topics. Accelerators and Beams},
number = 12,
volume = 17,
place = {United States},
year = {Mon Dec 15 00:00:00 EST 2014},
month = {Mon Dec 15 00:00:00 EST 2014}
}
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https://doi.org/10.1103/PhysRevSTAB.17.120703
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