Results 1 to 10 of about 167 (68)
Applied SciencesBased on the classical theory of nonlinear Thomson scattering and the single electron model, we performed extensive numerical simulations in MATLAB R2022b to comprehensively investigate how the initial phase of a tightly focused, circularly polarized ...
Yiwei Zhou, Erhan Li, Youwei Tian
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Frontiers in PhysicsBased on Thomson scattering classical theory and single-electron model, we explore the influence of variations in the laser beam waist radius on the interaction between an ultra-tightly focused (UTF) laser and off-axis electron. In practical experiments,
Qianmin Zheng +3 more
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Analysis of the Effect of Pulse Width on Nonlinear Thomson Scattering from an Applied Magnetic Field
Applied Sciences, 2023 The effects of magnetic fields on electron dynamics, spatially radiated power, and radiation spectra in tightly focused circularly polarized laser pulses are studied in detail. The laser wavelength λ0=1 μm.
Haokai Wang +4 more
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High quality beam produced by tightly focused laser driven wakefield accelerators
Physical Review Accelerators and Beams, 2023 We propose to use tightly focused lasers to generate high quality electron beams in laser wakefield accelerators. In this scheme, the expansion of the laser beam after the focal position enlarges the size of wakefield bubble, which reduces the effective ...
Jia Wang +4 more
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STAR Protocols, 2022 Summary: The technology to induce stem cell differentiation is of great importance in life science, stem cell therapy, and regenerative medicine. Here, we detail steps to noninvasively activate stem cell differentiation in vitro and in vivo using a ...
Wanyi Tang, Haipeng Wang, Hao He
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Three-dimensional measurement of a tightly focused laser beam
AIP Advances, 2013 The spatial structure of a tightly focused light field is measured with a double knife-edge scanning method. The measurement method is based on the use of a high-quality double knife-edge fabricated from a right-angled silicon fragment mounted on a ...
Xiangsheng Xie +4 more
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Efficient nonresonant dipole force on molecules by a tightly focused laser
Frontiers in Physics, 2014 When a molecule is placed in a nonresonant laser field, the Stark interactions between the laser field and the induced molecular dipole result in a mechanical force on the molecule.
Xing Nan eSun +3 more
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Electron scattering and acceleration by a tightly focused laser beam
Physical Review Special Topics. Accelerators and Beams, 2002 By numerically solving the relativistic equations of motion of a single electron in laser fields modeled by those of a Gaussian beam, we demonstrate electron capture by, reflection from, and transmission through the beam. In modeling the fields, terms of
Yousef I. Salamin +2 more
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Matter and Radiation at Extremes, 2023 A neural network-based approach is proposed both for reconstructing the focal spot intensity profile and for estimating the peak intensity of a high-power tightly focused laser pulse using the angular energy distributions of protons accelerated by the ...
N. D. Bukharskii +3 more
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Crystals, 2023 This article delves into the generation and modulation process of X-rays as high-energy photon sources. Using the principles of classical electrodynamics, this study enables nonrelativistic short pulse lasers to collide with high-energy electrons while ...
Mingjing Zeng +3 more
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