Controlling the spectrum of high-power terahertz radiation from a laser-driven plasma wave
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- Controlling the spectrum of high-power terahertz radiation from a laser-driven plasma wave
- Jang, Do-Geun; Kim, Jinju; Nam, Inhyuk; Hur, Min Sup; Suk, Hyyong
- Coherent radiation; Density profile; High-power; Narrow bandwidth; Particle-in-cell simulations; PIC simulation; Research issues; Spectrum range; Terahertz generation; Terahertz radiation; THz generation; THz radiation source; THz waves; Wide bandwidth
- Issue Date
- ELSEVIER SCIENCE BV
- CURRENT APPLIED PHYSICS, v.12, no.5, pp.1252 - 1255
- 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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