Title :
Dependence of THz radiation on the condition of laser-plasma electron acceleration using a helium gas target
Author :
Park, Seong Hee ; Mun, Jungho ; Yea, Kwon-Hae ; Lee, Yong Woo ; Ahn, Pil Dong ; Lee, Ji Young ; Lee, Kitae ; Cha, Yong Ho ; Lee, Byung Cheol ; Jeong, Young Uk
Author_Institution :
Quantum Opt. Div., Korea Atomic Energy Res. Inst., Daejeon, South Korea
Abstract :
Terahertz (THz) radiations, which is the transition radiation generated when a laser-accelerated electron bunch is passing through the plasma-vacuum boundary, is investigated at different conditions for laser-induced plasma. High energy electrons are generated by irradiating an intense laser pulse of 30 fs and 300 mJ on a He gas target. We discussed the relationship between the THz signals, X-ray signals, and electron charges.
Keywords :
electron accelerators; particle beam bunching; plasma accelerators; plasma light propagation; terahertz wave generation; THz radiation generation; THz signal; X-ray signal; electron charge; helium gas target; intense laser pulse; laser-accelerated electron bunch; laser-induced plasma; laser-plasma electron acceleration; plasma-vacuum boundary; Acceleration; Electrons; Gas lasers; Helium; Laser theory; Laser transitions; Optical pulse generation; Plasma density; Plasma measurements; Plasma x-ray sources;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on
Conference_Location :
Busan
Print_ISBN :
978-1-4244-5416-7
Electronic_ISBN :
978-1-4244-5417-4
DOI :
10.1109/ICIMW.2009.5324927
