Combining harmonic generation and laser chirping to achieve high spectral density in Compton sources
Abstract
Recently various laser-chirping schemes have been investigated with the goal of reducing or eliminating ponderomotive line broadening in Compton or Thomson scattering occurring at high laser intensities. Moreover, as a next level of detail in the spectrum calculations, we have calculated the line smoothing and broadening expected due to incident beam energy spread within a one-dimensional plane wave model for the incident laser pulse, both for compensated (chirped) and unchirped cases. The scattered compensated distributions are treatable analytically within three models for the envelope of the incident laser pulses: Gaussian, Lorentzian, or hyperbolic secant. We use the new results to demonstrate that the laser chirping in Compton sources at high laser intensities: (i) enables the use of higher order harmonics, thereby reducing the required electron beam energies; and (ii) increases the photon yield in a small frequency band beyond that possible with the fundamental without chirping. We found that this combination of chirping and higher harmonics can lead to substantial savings in the design, construction and operational costs of the new Compton sources. This is of particular importance to the widely popular laser-plasma accelerator based Compton sources, as the improvement in their beam quality enters the regime where chirping ismore »
- Authors:
- Publication Date:
- Research Org.:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1249725
- Alternate Identifier(s):
- OSTI ID: 1248816
- Report Number(s):
- JLAB-ACP-16-2151; DOE/OR/23177-3790
Journal ID: ISSN 2469-9888; PRABFM; 044403
- Grant/Contract Number:
- AC05-06OR23177
- Resource Type:
- Published Article
- Journal Name:
- Physical Review Accelerators and Beams
- Additional Journal Information:
- Journal Volume: 19; Journal Issue: 4; Journal ID: ISSN 2469-9888
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS
Citation Formats
Terzić, Balša, Reeves, Cody, and Krafft, Geoffrey A. Combining harmonic generation and laser chirping to achieve high spectral density in Compton sources. United States: N. p., 2016.
Web. doi:10.1103/PhysRevAccelBeams.19.044403.
Terzić, Balša, Reeves, Cody, & Krafft, Geoffrey A. Combining harmonic generation and laser chirping to achieve high spectral density in Compton sources. United States. https://doi.org/10.1103/PhysRevAccelBeams.19.044403
Terzić, Balša, Reeves, Cody, and Krafft, Geoffrey A. Mon .
"Combining harmonic generation and laser chirping to achieve high spectral density in Compton sources". United States. https://doi.org/10.1103/PhysRevAccelBeams.19.044403.
@article{osti_1249725,
title = {Combining harmonic generation and laser chirping to achieve high spectral density in Compton sources},
author = {Terzić, Balša and Reeves, Cody and Krafft, Geoffrey A.},
abstractNote = {Recently various laser-chirping schemes have been investigated with the goal of reducing or eliminating ponderomotive line broadening in Compton or Thomson scattering occurring at high laser intensities. Moreover, as a next level of detail in the spectrum calculations, we have calculated the line smoothing and broadening expected due to incident beam energy spread within a one-dimensional plane wave model for the incident laser pulse, both for compensated (chirped) and unchirped cases. The scattered compensated distributions are treatable analytically within three models for the envelope of the incident laser pulses: Gaussian, Lorentzian, or hyperbolic secant. We use the new results to demonstrate that the laser chirping in Compton sources at high laser intensities: (i) enables the use of higher order harmonics, thereby reducing the required electron beam energies; and (ii) increases the photon yield in a small frequency band beyond that possible with the fundamental without chirping. We found that this combination of chirping and higher harmonics can lead to substantial savings in the design, construction and operational costs of the new Compton sources. This is of particular importance to the widely popular laser-plasma accelerator based Compton sources, as the improvement in their beam quality enters the regime where chirping is most effective.},
doi = {10.1103/PhysRevAccelBeams.19.044403},
journal = {Physical Review Accelerators and Beams},
number = 4,
volume = 19,
place = {United States},
year = {Mon Apr 25 00:00:00 EDT 2016},
month = {Mon Apr 25 00:00:00 EDT 2016}
}
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https://doi.org/10.1103/PhysRevAccelBeams.19.044403
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Cited by: 12 works
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Works referencing / citing this record:
Compensation of non-linear bandwidth broadening by laser chirping in Thomson sources
journal, August 2018
- Maroli, C.; Petrillo, V.; Drebot, I.
- Journal of Applied Physics, Vol. 124, Issue 6