A simple way to introduce an adjustable femtosecond pre-pulse to enhance laser-driven proton acceleration. (November 2019)

• Record Type: Journal Article
• Authors: Wang, P; Gao, Y; Shou, Y; Pan, Z; Xu, S; Wang, D; Liu, J; Cao, Z; Mei, Z; Kong, D; Geng, Y; Zhao, Y; Lu, H; Lin, C; Yan, X; Ma, W
• Is Part Of: Journal of physics. Volume 1350(2019)
• Publication Date: 2019-11
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1350/1/012063
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: We demonstrate a simple way to introduce a femtosecond pre-pulse with adjustable intensity and delay without using an additional compressor to enhance laser-driven proton acceleration. Targets with different thicknesses were shoot at normal incidence by varying the pre-pulses. Experimental results show that significant enhancement of the proton energy can be achieved when the intensity of pre-pulse is optimized. Density profile of preplasma was obtained by hydrodynamic simulations. PIC simulations reveal that the preplasma generated by a femtosecond pre-pulse can increase the intensity of main pulse.