13 Papers
21 Citations
Weihao Liu is an academic researcher from Nanjing University of Aeronautics and Astronautics. The author has contributed to research in topics: Terahertz radiation & Particle accelerator. The author has an hindex of 2, co-authored 13 publications.
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Papers
Microscale Laser-Driven Particle Accelerator Using the Inverse Cherenkov Effect
TL;DR: In this paper, a microscale dielectric laser-driven particle accelerator based on the inverse effect of Cherenkov radiation was proposed, which utilizes a parallel-polarized laser beam that is incident perpendicularly on a right-angle surface of a high-breakdown-threshold prism, at the hypotenuse surface of which the laser-induced waves are innately synchronized with incoming free electrons, providing them with a continuous acceleration force.
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THz-driven dielectric particle accelerator on chip
TL;DR: In this paper, the authors proposed a terahertz-driven particle accelerator that uses few-cycle THz pulses to drive dielectric prisms and used prism stacks to overcome the asynchronization effect when accelerating low-energy particles.
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Terahertz laser diode using field emitter arrays
TL;DR: In this paper, a dc-biased self-excited microelectronic laser oscillator using collectively modulated free electrons emitted by field-emitter-arrays as the active medium and using an inherent Fabry-P\'erot interferometer formed by port reflections as the frequency selector is proposed.
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GV m$^{-1}$ on-chip particle accelerator driven by few-cycle femtosecond laser pulse
Li Sun,Weihao Liu,Jie Zhou,Yunliang Zhu,Zijia Yu,Yucheng Liu,Qika Jia,Baogen Sun,Hongliang Xu +8 more
TL;DR: In this paper, a few-cycle laser pulse was used to drive a DLA based on the inverse Cherekov radiation effect, which significantly reduced the required pulse duration and the laser fluence, remarkably increasing the achievable acceleration gradient.
Improved terahertz Smith–Purcell radiation using side-opening cylindrical gratings
TL;DR: In this article, a train of premodulated electron bunches is proposed to drive the cylindrical gratings, on which the electron bundles are further micro-bunched by interacting with the surface waves.
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