Achieving Stable Radiation Pressure Acceleration of Heavy Ions via Successive Electron Replenishment from Ionization of a High-
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>Z</mml:mi></mml:mrow></mml:math>
 Material Coating

Shen, X. F.; Qiao, B.; Zhang, H.; Kar, S.; Zhou, C. T.; Chang, H. X.; Borghesi, M.; He, X. T.

doi:10.1103/physrevlett.118.204802

Cited by 45 publications

(29 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Over the past decades, many acceleration mechanisms have been proposed, including the most-investigated target normal sheath acceleration (TNSA) [10][11][12], and radiation pressure acceleration (RPA) [13][14][15][16][17][18]. Though numerous efforts have been done to optimize laser and target conditions, till very recently proton maximum energies of 85 MeV by TNSA [19] and 94 MeV by a hybrid RPA-TNSA [20] have been reported by using the petawatt-picosecond laser pulses.…”

Section: Introductionmentioning

confidence: 99%

High-flux high-energy ion beam production from stable collisionless shock acceleration by intense petawatt-picosecond laser pulses

Qiao

Shen

et al. 2019

New J. Phys.

View full text Add to dashboard Cite

A scheme to achieve stable collisionless shock acceleration (CSA) of ions from a near-critical plasma by intense petawatt-picosecond laser pulses is proposed, where the plasma is confined in a high-Z solid tube. The application of the tube, on the one hand, restrains the plasma from transverse thermal expansion, helping to sustain sufficient density steepening required for shock formation and maintenance; on the other hand, due to the induced sheath field along its wall, pinches hot electrons for recirculation near laser axis, aiding to reach efficient plasma heating that is crucial to have a strong shock velocity for ion reflection. Consequently, stable ion CSA can be maintained for picosecond time scales, resulting in production of high-flux high-energy ion beams. Two-dimensional PIC simulations show that proton beams with narrow energy spread between 50 and 80 MeV and high flux with particle number about 10 12 are produced by a laser pulse at intensity 8.8×10 19 W cm −2 and duration 1 ps. By extending the pulse duration to 3 ps, over 100 MeV high-flux proton beams are obtained.

show abstract

Section: Introductionmentioning

confidence: 99%

High-flux high-energy ion beam production from stable collisionless shock acceleration by intense petawatt-picosecond laser pulses

Qiao

Shen

et al. 2019

New J. Phys.

View full text Add to dashboard Cite

show abstract

“…In this regime, the difference of the maximum energy observed in 2D and 3D simulations is small, as discussed in Refs. [29,42,49]. To further check this, we performed two 3D simulations, as shown by the open triangles in Fig.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…In ideal RPA, the scaling law can be described by the "light-sail" (LS) model [31,33], where a nanometer-scale foil is irradiated by a circularly polarized (CP) laser pulse to suppress the j × B heating. However, in realistic situations, due to multidimensional effects, detrimental transverse instabilities inevitably develop [39][40][41][42][43], and the accelerating foil becomes severely deformed. A significant number of hot electrons are produced and ejected during the interaction, leading to a moving hot electron cloud, and therefore a strong moving electrostatic field is established around the accelerating foil [26].…”

Section: Introductionmentioning

confidence: 99%

Scaling laws for laser-driven ion acceleration from nanometer-scale ultrathin foils

et al. 2021

Self Cite

View full text Add to dashboard Cite

Laser-driven ion acceleration has attracted global interest for its potential towards the development of a new generation of compact, low-cost accelerators. Remarkable advances have been seen in recent years with a substantial proton energy increase in experiments, when nanometer-scale ultrathin foil targets and high-contrast intense lasers are applied. However, the exact acceleration dynamics and particularly the ion energy scaling laws in this novel regime are complex and still unclear. Here, we derive a scaling law for the attainable maximum ion energy from such laser-irradiated nanometer-scale foils based on analytical theory and multidimensional particle-in-cell simulations, and further show that this scaling law can be used to accurately describe experimental data over a large range of laser and target parameters on different facilities. This provides crucial references for parameter design and experimentation of the future laser devices towards various potential applications.

show abstract

“…Although circularly polarized laser pulses with peak powers as high as 10 petawatts have already been assumed broadly in recent theoretical studies [42][43][44][45] , the generation of such pulses is still one of the outstanding problems in the field of high-power laser science. Nowadays, the generation of circularly-polarized laser pulses still relies on the use of conventional crystal quarter-wave plates.…”

Section: Discussionmentioning

confidence: 99%

“…The energy conversion efficiency of the polarization transformation is as high as 98%. The resultant ultra-high-power CP pulse, focused properly, could be extensively applied to laser-driven ion acceleration and ultra-bright X-ray radiation [42][43][44][45] .…”

Section: Simulation Verificationmentioning

confidence: 99%

Simultaneous polarization transformation and amplification of multi-petawatt laser pulses in magnetized plasmas

et al. 2019

View full text Add to dashboard Cite

1With increasing laser peak power, the generation and manipulation of high-power laser pulses becomes a growing challenge for conventional solid-state optics due to their limited damage threshold. As a result, plasma-based optical components which can sustain extremely high fields are attracting increasing interest. Here, we propose a type of plasma waveplate based on magneto-optical birefringence under a transverse magnetic field, which can work under extremely high laser power. Importantly, this waveplate can simultaneously alter the polarization state and boost the peak laser power. It is demonstrated numerically that an initially linearly polarized laser pulse with 5 petawatt peak power can be converted into a circularly polarized pulse with a peak power higher than 10 petawatts by such a waveplate with a centimeter-scale diameter. The energy conversion efficiency of the polarization transformation is about 98%. The necessary waveplate thickness is shown to scale inversely with plasma electron density n e and the square of magnetic field B 0 , and it is about 1 cm for n e = 3 × 10 20 cm −3 and B 0 = 100 T. The proposed plasma waveplate and other plasma-based optical components can play a critical role for the effective utilization of multi-petawatt laser systems.

show abstract

Achieving Stable Radiation Pressure Acceleration of Heavy Ions via Successive Electron Replenishment from Ionization of a High- Z Material Coating

Cited by 45 publications

References 34 publications

High-flux high-energy ion beam production from stable collisionless shock acceleration by intense petawatt-picosecond laser pulses

High-flux high-energy ion beam production from stable collisionless shock acceleration by intense petawatt-picosecond laser pulses

Scaling laws for laser-driven ion acceleration from nanometer-scale ultrathin foils

Simultaneous polarization transformation and amplification of multi-petawatt laser pulses in magnetized plasmas

Contact Info

Product

Resources

About