Laser pulse spatial-temporal inversion technology for ICF laser facility

2017 ◽  
Author(s):  
Ying Zhang ◽  
Yuanchao Geng ◽  
Lin Chen ◽  
Wanqing Huang ◽  
Junpu Zhao ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Laser Facility

Generation and measurement of complex laser pulse shapes in the SG-III laser facility

2015 ◽  
Vol 13 (4) ◽  
pp. 041406-41409 ◽  
Author(s):  
Dongxia Hu Dongxia Hu ◽  
Jun Dong Jun Dong ◽  
Dangpeng Xu Dangpeng Xu ◽  
Xiaoxia Huang Xiaoxia Huang ◽  
Wei Zhou Wei Zhou ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Laser Facility

Online optimization and measurement of femtosecond laser pulse in multi-petawatt laser facility

Optik ◽  
2020 ◽  
Vol 222 ◽  
pp. 165422
Author(s):  
Qingwei Yang ◽  
Meizhi Sun ◽  
Xiao Liang ◽  
Ailin Guo ◽  
Jun Kang ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Femtosecond Laser Pulse ◽  
Online Optimization ◽  
Laser Facility

Resonant interaction between laser and electrons undergoing betatron oscillations in the bubble regime

2015 ◽  
Vol 81 (5) ◽  
Author(s):  
Alessandro Curcio ◽  
Danilo Giulietti ◽  
Giuseppe Dattoli ◽  
Massimo Ferrario
Keyword(s):  
Laser Pulse ◽  
Resonant Interaction ◽  
Spatial Distributions ◽  
Accelerated Electrons ◽  
Radiation Spectra ◽  
Experimental Parameters ◽  
Laser Facility ◽  
Bubble Regime

The betatron radiation in the bubble regime is studied in the presence of resonant interaction between the accelerated electrons and the driver laser pulse tail. The calculations refer to experimental parameters available at the FLAME laser facility at the National Laboratories of Frascati (LNF), and represent the radiation spectra and spatial distributions to be expected in forthcoming experiments.

scholarly journals Distortion of Thomson Parabolic-Like Proton Patterns Due to Electromagnetic Interference

2021 ◽  
Vol 11 (10) ◽  
pp. 4484
Author(s):  
Filip Grepl ◽  
Josef Krása ◽  
Andriy Velyhan ◽  
Massimo De Marco ◽  
Jan Dostál ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Electromagnetic Interference ◽  
Solid Target ◽  
Plasma Diagnostic ◽  
Front Side ◽  
Electromagnetic Pulses ◽  
High Intensity Laser ◽  
Laser Facility ◽  
Intensity Laser ◽  
Interaction Chamber

Intense electromagnetic pulses (EMPs) accompany the production of plasma when a high-intensity laser irradiates a solid target. The EMP occurs both during and long after the end of the laser pulse (up to hundreds of nanoseconds) within and outside the interaction chamber, and interferes with nearby electronics, which may lead to the disruption or malfunction of plasma diagnostic devices. This contribution reports a correlation between the frequency spectrum of the EMP and the distortion of Thomson parabola tracks of protons observed at the kJ-class PALS laser facility in Prague. EMP emission was recorded using a simple flat antenna. Ions accelerated from the front side of the target were simultaneously detected by a Thomson parabola ion spectrometer. The comparison of the two signals suggests that the EMP may be considered to be the source of parabolic track distortion.

Investigations on the hohlraum radiation in the first shaped laser pulse implosion experiment at the SGIII laser facility

2019 ◽  
Vol 26 (2) ◽  
pp. 022705 ◽  
Author(s):  
Chuanying Li ◽  
Changshu Wu ◽  
Tianxuan Huang ◽  
Zhensheng Dai ◽  
Xin Li ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Laser Facility

Relative spectral power measurement of laser-pulse for high power laser facility

2014 ◽  
Vol 26 (10) ◽  
pp. 101008
Author(s):  
董军 Dong Jun ◽  
孙志红 Sun Zhihong ◽  
卢宗贵 Lu Zonggui ◽  
彭志涛 Peng Zhitao ◽  
夏彦文 Xia Yanwen ◽  
...  
Keyword(s):  
Laser Pulse ◽  
High Power ◽  
Spectral Power ◽  
Power Measurement ◽  
High Power Laser ◽  
Power Laser ◽  
Laser Facility

Laser parametric instability experiments of a 3ω, 15 kJ, 6-ns laser pulse in gas-filled hohlraums at the Ligne d'Intégration Laser facility

2015 ◽  
Vol 22 (2) ◽  
pp. 022706 ◽  
Author(s):  
C. Rousseaux ◽  
G. Huser ◽  
P. Loiseau ◽  
M. Casanova ◽  
E. Alozy ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Parametric Instability ◽  
Laser Facility

scholarly journals Spatial and temporal characteristics of X-ray emission from hot plasma driven by a relativistic femtosecond laser pulse

2009 ◽  
Vol 27 (1) ◽  
pp. 19-26 ◽  
Author(s):  
W. Hong ◽  
Y. He ◽  
T. Wen ◽  
H. Du ◽  
J. Teng ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Laser Intensity ◽  
Laser Fusion ◽  
X Rays ◽  
X Ray ◽  
Hot Plasma ◽  
Laser Facility ◽  
Jet Structure ◽  
Spatial And Temporal Characteristics

AbstractWe present the temporal and spatial characterization of X-ray sources (at ~1 keV) driven by a 200 TW, 30 fs, 800 nm laser pulse on SILEX-I laser facility at Research Center of Laser Fusion. For laser copper foil interaction with laser intensity between 6 × 1018 W/cm2and 3 × 1019 W/cm2, the X-ray images show cone-like jet structures. While the yield of X-rays is strongly dependent on the laser intensity, the plasma expansion length is weakly dependent on the laser intensity, and the open angle of the cone-like jet is not correlated to the laser intensity. The formation of the jet structure is attributed to the plasma transverse confine by the self-induced quasi-static magnetic field. An X-ray pedestal 4 ns preceding the main pulse was observed. The correlation between X-ray pedestal and collimated proton beam generation was found.

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