100 Papers
235 Citations
Qika Jia is an academic researcher from University of Science and Technology of China. The author has contributed to research in topics: Terahertz radiation & Laser. The author has an hindex of 11, co-authored 85 publications.
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Papers
Phase-merging enhanced harmonic generation free-electron laser with a normal modulator
Z. G. Zhao,Heting Li,Qika Jia +2 more
TL;DR: Using the natural gradient of a normal planar modulator has the distinct advantage that the gradient can be conveniently tuned in quite a large range by adjusting the beam orbit offset.
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Multi-color and multidirectional-steerable Smith-Purcell radiation from 2D sub-wavelength hole arrays
TL;DR: In this article, a multi-color and multi-directional radiation by using sheet electron-beams to drive two-dimensional (2D) sub-wavelength hole arrays (SHAs) is investigated.
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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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Theory of the special Smith-Purcell radiation from a rectangular grating
TL;DR: The recently uncovered special Smith-Purcell radiation (S-SPR) from the rectangular grating has significantly higher intensity than the ordinary SPR and its monochromaticity and directivity are also much better as discussed by the authors.
Generation of Intense Narrow-Band Tunable Terahertz Radiation from Highly Bunched Electron Pulse Train
TL;DR: In this article, the authors present the analysis and start-to-end simulation of an intense narrow-band terahertz (THz) source with a broad tuning range of radiation frequency, using a single-pass free electron laser (FEL) driven by a THz-pulse-train photoinjector.
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