Vortex γ rays from scattering laser bullets off ultrarelativistic electrons

Liu, Yangyang; Salamin, Yousef I.; Dou, Zhen-Ke; Xu, Zhongfeng; Li, Jianxing

doi:10.1364/ol.45.000395

Cited by 21 publications

(8 citation statements)

References 47 publications

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“…Head-on collisions of ultrarelativistic electron bunches with the so-called Bessel-Bessel laser bullets of very high intensity (ultrashort and tightly focused analogues of Bessel beams) can also lead to production of a vortex γ pulse via nonlinear Compton scattering. Semiclassical Monte Carlo simulations of this process were reported in [181].…”

Section: Vortex States Colliding With Ion Beamsmentioning

confidence: 99%

Promises and challenges of high-energy vortex states collisions

Ivanov

2022

Preprint

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Vortex states of photons, electrons, and other particles are non-plane-wave solutions of the corresponding wave equation with helicoidal wave fronts. These states possess an intrinsic orbital angular momentum with respect to the average propagation direction, which represents a new degree of freedom, previously unexplored in particle or nuclear collisions.Vortex states of photons, electrons, neutrons, and neutral atoms have been experimentally produced, albeit at low energies, and are being intensively explored. Anticipating future experimental progress, one can ask what additional insights on nuclei and particles one can gain once collisions of high-energy vortex states become possible. This review describes the present-day landscape of physics opportunities, experimental progress and suggestions relevant to vortex states in high energy collisions. The aim is to familiarize the community with this emergent cross-disciplinary topic and to provide a sufficiently complete literature coverage, highlighting some results and calculational techniques.

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Section: Vortex States Colliding With Ion Beamsmentioning

confidence: 99%

Promises and challenges of high-energy vortex states collisions

Ivanov

2022

Preprint

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“…The semiclassical probability of radiation of twisted photons has been obtained to describe the interaction of ultrarelativistic particles moving in the electromagnetic field [144]. Based on the strongly NLC scattering, recent, numerous studies have proposed the production of OAM γ-photons using a Laguerre-Gaussian (LG) laser beam, since LG-laser photons carry spin and orbital angular momenta (SAM and OAM, respectively) [138,[145][146][147][148]. Numerical simulations demonstrate the angular momentum conservation among absorbed LG-laser photons, quantum radiation, and electrons in the quantum radiation-dominated regime [138], and show that the angular momentum of the absorbed laser photons is not solely transferred to the emitted γ-photons, but is shared between the γ-photons and the interacting electrons, because of the radiation-reaction effects (see Fig.…”

Section: γ−Photon Polarization From Electrons In the Strongly Nlc Sca...mentioning

confidence: 99%

Production of polarized particle beams via ultraintense laser pulses

Sun¹,

Zhao²,

Xue³

et al. 2022

Preprint

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High-energy spin-polarized electron, positron, and γ-photon beams have many significant applications in the study of material properties, nuclear structure, particle physics, and high-energy astrophysics. Thus, efficient production of such polarized beams attracts a broad spectrum of research interests. This is driven mainly by the rapid advancements in ultrashort and ultraintense laser technology. Currently available laser pulses can achieve peak intensities in the range of 10 22 − 10 23 Wcm −2 , with pulse durations of tens of femtoseconds. The dynamics of particles in laser fields of the available intensities is dominated by quantum electrodynamics (QED) and the interaction mechanisms have reached regimes spanned by nonlinear multiphoton absorbtion (strong-field QED

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“…Usually, the laser intensity is ultra-high [7,8] since the advent of chirped pulse amplification technology [9], so the movement of free electrons in intense laser field becomes relativistic and nonlinear [10]. X-rays also γ-rays [11] can be generated by NTS, and is also widely applied in astrophysics [12] and biomedicine [13,14].…”

Section: Introductionmentioning

confidence: 99%

Generation of high-power and highly collimated X-rays through cross-collision between relativistic electron and tightly focused intense laser pulse

Yang

Wang

et al. 2023

Preprint

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Nonlinear cross Thomson scattering (NCTS) is the process that an electron cross-collides with a laser pulse, which has potential as a high-quality X-ray source. This paper reports a method to generate sideways X-ray with high power and good collimation through NCTS based on classical electrodynamics, through numerical simulation. When NCTS happens between a relativistic electron and a tightly focused circular polarized intense laser pulse, the initial distance of the electron with the interaction area has a significant effect of electron motion and radiation. The spatial radiation shows a shape of lying ‘U’, whose peak power increases first and then decreases as initial distance increasing. The peak power is more concentrate and is 31.4% higher than that of nonlinear inverse Thomson scattering. Changing the initial distance of electron can modulate the direction of NCTS radiation from 60° to 90° to the electron incident direction. The cut-off wavelength of its super continuity spectrum reaches 6.67Å. These results are helpful for understanding nonlinear Thomson scattering and designing practical high-quality X-ray sources.

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Vortex γ rays from scattering laser bullets off ultrarelativistic electrons

Cited by 21 publications

References 47 publications

Promises and challenges of high-energy vortex states collisions

Promises and challenges of high-energy vortex states collisions

Production of polarized particle beams via ultraintense laser pulses

Generation of high-power and highly collimated X-rays through cross-collision between relativistic electron and tightly focused intense laser pulse

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