Dynamic study of compressed electron layer driven by linearly polarized laser

Wang, Fengchao

doi:10.1088/1674-1056/25/5/054102

Cited by 2 publications

(2 citation statements)

References 28 publications

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“…Although there have been many theoretical and numerical investigations of LWFA and the scaling laws have also been found, [14][15][16][17][18] to obtain high-quality electron bunches in practical experiments is a challenging task due to the complexity of the strongly nonlinear bubble regime. As we know, the laser pulse interacts with plasma electrons at the very front and the major part of the laser pulse propagates freely in the blow-out region.…”

Section: Introductionmentioning

confidence: 99%

Electron self-injection and acceleration in a hollow plasma channel driven by ultrashort intense laser pulses

Deng¹,

Liu²

2019

Chinese Phys. B

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The self-injection and acceleration of electrons in a hollow plasma channel driven by ultrashort intense laser pulses is investigated by Particle-in-Cell (PIC) simulations. It is shown that electrons from the bubble sheath will be self-injected into the hollow plasma channel and move radially towards the channel border due to the lack of focusing force in the hollow plasma channel. After several reflections near the channel wall by the strong focusing force, a self-injected electron bunch can be confined in the hollow plasma channel and quasi-phase-stably accelerated forward for the whole laserplasma interaction process. These electrons using optical and plasma-related self-injection method can be self-organized to remain in the rear of the bubble, where the accelerating electric field is transversely uniform and nearly plateau along the propagation axis. Therefore, the self-injected electron bunch can be accelerated in a steady state without obvious oscillation and has a high quality with narrow energy spread and low divergence.

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Section: Introductionmentioning

confidence: 99%

Electron self-injection and acceleration in a hollow plasma channel driven by ultrashort intense laser pulses

Deng¹,

Liu²

2019

Chinese Phys. B

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“…High quality ion beams acceleration through the laserplasma interaction has been widely studied for the past few decades because of its many significant applications, such as low-cost tabletop accelerators, [1] hadron therapy of oncological diseases, [2] and inertial confinement fusion. [3][4][5] A number of acceleration mechanisms have been proposed, for instance, electrostatic shock acceleration, [6][7][8][9] target normal sheath acceleration, [10][11][12] magnetic vortex acceleration, [13][14][15][16] and radiation pressure acceleration (RPA), [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35] etc. Among all these mechanisms, the RPA that by using the circularly polarized laser, in which the generation of the hot electron is effectively suppressed and the steady radiation pressure is dominated, [17,22,33,36] is regarded as the highly promising scheme due to the high energy conversion efficiency and the production of the high-quality fast ions.…”

Section: Introductionmentioning

confidence: 99%

Generation of high quality ion beams through the stable radiation pressure acceleration of the near critical density target

et al. 2017

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In order to generate high quality ion beams through the stable radiation pressure acceleration (RPA) of the near critical density (NCD) target, we propose a new type of target where an ultra-thin high density (HD) layer is attached to the front surface of an NCD target, which has a preferable self-supporting property in the RPA experiments than the ultra-thin foil target. It is found that in one-dimensional particle-in-cell (PIC) simulation, by the block of the HD layer in the new target, there emerges the hole-boring process rather than propagation in the NCD layer when the intense laser pulse impinges on this target. As a result, a typical RPA structure that the compressed electron layer overlaps the ion layer as a whole is formed and a high quality ion beam is obtained, e.g., a circularly polarized laser pulse with normalized amplitude a 0 = 120 impinges on this new target and a 1.2 GeV monoenergetic ion beam is generated through the RPA of the NCD layer. Similar results are also found in the two-dimensional PIC simulation.

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Dynamic study of compressed electron layer driven by linearly polarized laser

Cited by 2 publications

References 28 publications

Electron self-injection and acceleration in a hollow plasma channel driven by ultrashort intense laser pulses

Electron self-injection and acceleration in a hollow plasma channel driven by ultrashort intense laser pulses

Generation of high quality ion beams through the stable radiation pressure acceleration of the near critical density target

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