Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Yi, Longqing"'
Autor:
Hu, Ke, Yi, Longqing
We propose utilizing a polarization-tailored high-power laser pulse to extract and accelerate electrons from the edge of a solid foil target to produce isolated attosecond electron bunches. The laser pulse consists of two orthogonally-polarized compo
Externí odkaz:
http://arxiv.org/abs/2403.10017
Autor:
Hu, Ke, Yi, Longqing
It has been recently reported that ultraviolet harmonic vortices can be produced when a high-power circular-polarized laser pulse travels through a micro-scale waveguide. However, the harmonic generation quenches typically after a few tens of microns
Externí odkaz:
http://arxiv.org/abs/2301.05423
Autor:
Hu, Ke, Yi, Longqing
A scheme for generating intense high-harmonic optical vortices is proposed. It relies on spin-orbit interaction of light when a relativistically-strong circularly polarized laser pulse irradiates a micro-plasma-waveguide. The intense laser field driv
Externí odkaz:
http://arxiv.org/abs/2202.08561
Autor:
Yi, Longqing
Publikováno v:
Phys. Rev. Lett. 126, 134801 (2021)
When a high power laser beam irradiates a small aperture on a solid foil target, the strong laser field drives surface plasma oscillation at the periphery of this aperture, which acts as a "relativistic oscillating window". The diffracted light that
Externí odkaz:
http://arxiv.org/abs/2010.01070
When a relativistic, femtosecond laser pulse enters a waveguide, the pulse energy is coupled into waveguide optical modes. The longitudinal laser field effectively accelerates electrons along the axis of the channel, while the asymmetric transverse e
Externí odkaz:
http://arxiv.org/abs/2009.14556
Autor:
Hu, Ke, Yi, Longqing
Publikováno v:
Phys. Rev. A 102, 023530 (2020)
A novel scheme for generating powerful terahertz (THz) radiation based on laser-solid interactions is proposed. When a $p$-polarized femtosecond laser impinges obliquely on a plane solid target and the target partially blocks the laser energy, surfac
Externí odkaz:
http://arxiv.org/abs/2003.08899
Light carries angular momentum as spin and orbital components. The spin-orbit interaction (SOI) of light refers to phenomena in which the spin (left or right circular polarisation) affects the spatial degrees of freedom. Recently, interest in SOI has
Externí odkaz:
http://arxiv.org/abs/1909.02887
Autor:
Xu, Zhangli, Yi, Longqing, Shen, Baifei, Xu, Jiancai, Ji, Liangliang, Xu, Tongjun, Zhang, Lingang, Li, Shun, Xu, Zhizhan
Publikováno v:
Communications Physics 3, 191 (2020)
Positron acceleration in plasma wakefield faces significant challenges since the positron beam must be pre-generated and precisely coupled into the wakefield, and most critically, suffers from defocusing issues. Here we propose a scheme that utilizes
Externí odkaz:
http://arxiv.org/abs/1905.07847
Autor:
Yi, Longqing, Fülöp, Tünde
Publikováno v:
Phys. Rev. Lett. 123, 094801 (2019)
We propose a method to generate isolated relativistic terahertz (THz) pulses using a high-power laser irradiating a mirco-plasma-waveguide (MPW). When the laser pulse enters the MPW, high-charge electron bunches are produced and accelerated to ~ 100
Externí odkaz:
http://arxiv.org/abs/1904.07914
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