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Controlling the spectrum of high-power terahertz radiation from a laser-driven plasma wave |
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| Authors: | Do-Geun Jang Jinju Kim Inhyuk Nam Min Sup Hur Hyyong Suk |
| Affiliation: | 1. Department of Photonics and Applied Physics, Gwangju Institute of Science and Technology, Oryong-dong, Buk-gu, Gwangju, Republic of Korea;2. School of Electrical and Computer Engineering, UNIST, Ulsan, Republic of Korea;3. APRI, Gwangju Institute of Science and Technology, Oryong-dong, Buk-gu, Gwangju, Republic of Korea |
| Abstract: | Generation of strong THz waves is a very important and difficult research issue. We performed particle-in-cell (PIC) simulation studies to investigate the possibility of powerful THz generation and spectrum controllability by using a laser-driven plasma wave. Our results show that it is possible to produce spectrum-controllable high-power (>1 MV/cm) THz waves by manipulating the plasma density profiles. This method may provide a good way for coherent high-power THz radiation sources, of which the spectrum ranges from a narrow bandwidth to a wide bandwidth. |
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