A Compact Accelerator-Based Light Source for High-Power, Full-Bandwidth Tunable Coherent THz Generation
Source abstract
Abstract
Terahertz (THz) radiation sources are increasingly significant for many scientific frontiers, while the generation of THz radiation with high-power at wide-tunable frequencies is still a limitation for most existing methods. In this paper, a compact accelerator-based light source is proposed to produce coherent THz radiation with high pulse energy and tunable frequency from 0.1 THz to 60 THz. By using a frequency beating laser-modulated electron beam and undulator taper, intense coherent THz radiation can be generated through undulators. Theoretical analysis and numerical simulations demonstrate that the proposed technique can generate narrow-bandwidth THz radiation with a pulse energy up to 6.3 millijoule (mJ) and the three-dimensional effects of beam has limited influence on its performance. The proposed technique will open up new opportunities for THz spectroscopic and time-resolved experiments.
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Research context
OpenAlex topics: Terahertz technology and applications · Gyrotron and Vacuum Electronics Research · Pulsed Power Technology Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Accelerator Physics and Laser Technology Department, Shanghai Advanced Research Institution, Chinese Academy of Sciences, Shanghai 201210, China
University of Chinese Academy of Sciences, Beijing 100049, China
Accelerator Physics and Laser Technology Department, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
Funding
National Natural Science Foundation of China
References (55)
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