Enhanced Laser Ion Acceleration based on Near-Critical Density Plasma Lens

Geng, Yixing; Chen, Jia-er; Li, Rongfeng; Li, Yunhui; Liao, Qing; Lin, Chen; Lu, Haiyang; Lu, Yuanrong; Wang, Hongyong; Yan, Xueqing; Yuan, Zhong; Zhao, Shuan; Zhao, Weibo; Zhao, Yanying; Zhu, Kun; Zou, Bin

doi:10.18429/JACoW-IPAC2014-TUPME052

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RIS citation export for TUPME052: Enhanced Laser Ion Acceleration based on Near-Critical Density Plasma Lens

TY - CONF
AU - Geng, Y.X.
AU - Chen, J.E.
AU - Li, L.R.F.
AU - Li, Y.H.
AU - Liao, Q.
AU - Lin, C.
AU - Lu, L.H.Y.
AU - Lu, Y.R.
AU - Wang, H.
AU - Yan, X.Q.
AU - Yuan, Z.X.
AU - Zhao, S.
AU - Zhao, W.B.
AU - Zhao, Y.Y.
AU - Zhu, K.
AU - Zou, B.Y.
ED - Petit-Jean-Genaz, Christine
ED - Arduini, Gianluigi
ED - Michel, Peter
ED - Schaa, Volker RW
TI - Enhanced Laser Ion Acceleration based on Near-Critical Density Plasma Lens
J2 - Proc. of IPAC2014, Dresden, Germany, June 15-20, 2014
C1 - Dresden, Germany
T2 - International Particle Accelerator Conference
T3 - 5
LA - english
AB - The laser prepulse has large effect on ion acceleration driven by high power laser pulse. Recently, simulations show that with proper prepulse parameters, a near critical density pre-plasma can be generated in the front target. When the main laser pulse propagating in this pre-plasma, it can experience transverse Self-focusing, longitudinal profile steepening and prepluse cleaning at the same time, meaning its quality is spontaneously improved by this “plasma lens”.The effects can greatly improve the energy coupling efficiency of laser pulse into accelerated ions. A 3mJ Ti-Sapphire laser system has been built at PKU in order to experimentally study the pre-pulse effect on a solid target. Fluid simulation show that, after hundreds of picoseconds radiated with this laser pulse, the pre-plasma in front of the target will expand to near critical density with tens of micron scale length, which is suitable as a plasma lens to improve the ion acceleration. A laser interferometer system is built to measure the scale length and density evolution of plasma and the optimum condition of the pre-plasma has been searched using both Aluminum target and home-made DLC target.
PB - JACoW
CP - Geneva, Switzerland
SP - 1483
EP - 1485
KW - plasma
KW - laser
KW - target
KW - acceleration
KW - electron
DA - 2014/07
PY - 2014
SN - 978-3-95450-132-8
DO - 10.18429/JACoW-IPAC2014-TUPME052
UR - http://jacow.org/ipac2014/papers/tupme052.pdf
ER -