Scaling of petawatt-class lasers to multi-kHZ repetition rates

Galvin, Thomas C.; Bayramian, Andrew James; Chesnut, Kyle; Erlandson, A. C.; Siders, C. W.; Sistrunk, Emily; Spinka, Thomas; Haefner, C.

doi:10.1117/12.2520981

Cited by 17 publications

(10 citation statements)

References 12 publications

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“…While EuPRAXIA current design is centred around laser beams at a maximum repetition rate of 100 Hz, several schemes have now been proposed to bring high-power lasers to repetition rates exceeding the kHz (see, e.g. [47]). This ongoing technological development will in turn increase the positron flux per second while maintaining the same experimental configuration for the positron generation.…”

Section: Discussionmentioning

confidence: 99%

Plasma-based positron sources at EuPRAXIA

Sarri

Calvin

Streeter

2022

Plasma Phys. Control. Fusion

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Plasma-based positron sources are attracting significant attention from the research community, thanks to rather unique characteristics, which include broad energy tuneability and ultra-short duration, obtainable in a compact and relatively inexpensive setup. Here, we show a detailed numerical study of the positron beam characteristics obtainable at the dedicated user target areas proposed for the EuPRAXIA facility, the first plasma-based particle accelerator to be built as a user facility for applications. It will be shown that MeV-scale positron beams with unique properties for industrial and material science applications can be produced, alongside with GeV-scale positron beams suitable for fundamental science and accelerator physics.

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Section: Discussionmentioning

confidence: 99%

Plasma-based positron sources at EuPRAXIA

Sarri

Calvin

Streeter

2022

Plasma Phys. Control. Fusion

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“…The fiber laser solution, combining many ultra-short pulses generated from fiber amplifiers in time, space, and wavelength [59][60][61], offers high wall-plug efficiencies and excellent thermal management. A flexible high-rate laser driver utilizing bulk Tm:YLF crystals [62,63] near 2 µm wavelength is an inherently high-efficiency, single laser beam solution. Over the long term, the development of reliable, high-rep-rate sources in the mid-wave infrared (3-8µm) and long-wave infrared (8-15 µm) could also provide unique opportunities for HEP applications, including as an enabling technology for an "all-optical" source of highbrightness, potentially spin-polarized, electron beams using two-color injection [42,43,64].…”

Section: B High-power Laser Randdmentioning

confidence: 99%

Linear collider based on laser-plasma accelerators

Benedetti¹,

Bulanov²,

Esarey³

et al. 2022

Preprint

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Laser-plasma accelerators (LPAs) are capable of sustaining accelerating fields of 1-100 GeV/m, 10-1000 times that of conventional RF technology, and the highest fields produced by any of the widely researched advanced accelerator concepts. Furthermore, LPAs intrinsically produce short particle bunches, 100-1000 times shorter than that of conventional RF technology, which leads to reductions in beamstrahlung and savings in overall power consumption. Furthermore, they enable novel energy recovering methods that can reduce power consumption and improve the luminosity per unit energy consumption for linear colliders. These properties make LPAs a promising candidate as drivers for a more compact, less expensive high-energy collider by providing multi-TeV polarized leptons in a relatively short distance ∼1 km. Collider concepts are discussed up to the 15 TeV range. A future RF-based linear collider facility could be re-purposed to delivery higher energies with LPA technology thereby extending physics reach while saving on construction costs.Previous reports have made strong recommendations for a vigorous program on LPA R&D and applications, including the previous P5 and subcommittee reports, the European Strategy and Laboratory Directors Group reports, and several others. Numerous significant results have been obtained since the last P5 report, including the production of high quality electron bunches at 8 GeV from a single stage, the staging of two LPA modules, novel injection techniques for ultra-high beam brightness, investigation of processes that stabilize beam break up, new concepts for positron acceleration, and new technologies for high-average-power, high-efficiency lasers. In addition to the long term goal of a high energy collider, LPAs can provide compact sources of particles and photons for a wide variety of near-term applications in science, medicine, and industry.Research on LPAs has exploded in recent years, driven in part by the extremely rapid advances made in high-power lasers based on the 2018 Nobel Prize winning technique of chirped-pulse amplification. Numerous high-power laser facilities have sprung up worldwide, particularly in Europe and Asia. Consequently, about 800-1000 research papers are published annually on LPAs. Since much of this research is overseas, it is critical that the U.S. make strong investments in LPAs to ensure global leadership.The LPA community proposes the following recommendations to the Snowmass conveners:1. Vigorous research on LPAs, including experimental, theoretical, and computational components, continue as part of the General Accelerator R&D program to make rapid progress along the LPA R&D roadmap towards an eventual high energy collider, develop intermediate applications, and ensure international competitiveness.2. Enhance R&D on laser drivers to develop the efficient, high repetition rate, high average power laser technology that will power LPA colliders.3. Near-term LPA capability extensions should be carried out, such as enhancing existing facilities in laser pe...

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“…Four individually optimized designs, sharing the same architecture described in the previous paragraph, were created: 4-pass and 8-pass versions of the 100 Hz and 200 Hz design points. The procedure discussed in Reference [20] was used to optimize each of the four designs, with one change: instead of having two equal-area heads, the aperture sizes of both heads are scaled so that their output fluences on the last pass are at the operating fluence limit (a value set below the laser damage fluence). This change increases the fluence in the second head and thus enables more efficient extraction.…”

Section: Eupraxia Designmentioning

confidence: 99%

“…The flat optical-to-optical efficiency of the BAT baseline design above 1 kHz illustrates more ideal repetition rate scaling of MPE designs. The 'baseline' design is the 10 kHz, 100 fs, 30 J design described in [20]. Figure 6 shows a scatter plot of average output power versus wall-plug electrical power for the amplifiers discussed in this paper.…”

Section: Eupraxia Designmentioning

confidence: 99%

“…The 8-pass 100 Hz and 200 Hz design points discussed in this section are outlined in black dashed lines. The 30 J 10 kHz design is the baseline BAT design described in Reference [20], while the 3 J 10 kHz design is its corresponding pump laser. The inset wheel chart shows fraction of wallplug energy moved to laser output, fluorescence, waste heat, and refrigeration.…”

Section: Eupraxia Designmentioning

confidence: 99%

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Wavelength Scaling of Laser Wakefield Acceleration for the EuPRAXIA Design Point

et al. 2019

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Scaling the particle beam luminosity from laser wakefield accelerators to meet the needs of the physics community requires a significant, thousand-fold increase in the average power of the driving lasers. Multipulse extraction is a promising technique capable of scaling high peak power lasers by that thousand-fold increase in average power. However, several of the best candidate materials for use in multipulse extraction amplifiers lase at wavelengths far from the 0.8–1.0 μm region which currently dominates laser wakefield research. In particular, we have identified Tm:YLF, which lases near 1.9 µm, as the most promising candidate for high average power multipulse extraction amplifiers. Current schemes to scale the laser, plasma, and electron beam parameters to alternative wavelengths are unnecessarily restrictive in that they stress laser performance gains to keep plasma conditions constant. In this paper, we present a new and more general scheme for wavelength scaling a laser wakefield acceleration (LWFA) design point that provides greater flexibility in trading laser, plasma, and electron beam parameters within a particular design point. Finally, a multipulse extraction 1.9 µm Tm:YLF laser design meeting the EuPRAXIA project’s laser goals is discussed.

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Scaling of petawatt-class lasers to multi-kHZ repetition rates

Cited by 17 publications

References 12 publications

Plasma-based positron sources at EuPRAXIA

Plasma-based positron sources at EuPRAXIA

Linear collider based on laser-plasma accelerators

Wavelength Scaling of Laser Wakefield Acceleration for the EuPRAXIA Design Point

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