Recent Studies of Intense-Laser-Driven X-ray and Terahertz Radiation Sources at the Insitute of Physics, CAS

K alpha x-ray source profile and intense Terahertz radiation from femtosecond laser-plasma interactions are studied. When a preplasma is presented, a weak halo surrounding a bright spot is observed in the x-ray source. The x-ray photons in the halo are mainly excited by the fast electrons that flow...

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Bibliographic Details
Published in:Proceedings of the Conference of Light at Extreme Intensities 2009-10, Vol.1228, p.334-337
Main Authors: Li, Y T, Lin, X X, Li, C, Zhou, M L, Liu, F, Du, F, Liu, B C, Wang, S J, Chen, L M, Ma, J L, Wang, Z H, Wei, Z Y, Sheng, Z M, Zhang, J
Format: Article
Language:English
Subjects:
Bright spots
Excitation
Femtosecond
Halos
Lasers
Photons
Radiation sources
X-ray sources
X-rays
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Summary:K alpha x-ray source profile and intense Terahertz radiation from femtosecond laser-plasma interactions are studied. When a preplasma is presented, a weak halo surrounding a bright spot is observed in the x-ray source. The x-ray photons in the halo are mainly excited by the fast electrons that flow laterally near the target surface. Intense Terahertz radiation has been observed in the laser specular direction. The pulse energy of the radiation reaches tens of mu J/sr.
ISSN:0094-243X