Short pulse eye-safe laser with a stimulated Raman scattering self-conversion based on a Nd:KGW crystal

2007 ◽  
Vol 32 (9) ◽  
pp. 1096 ◽  
Author(s):  
Huang Jianhong ◽  
Lin Jipeng ◽  
Su Rongbing ◽  
Li Jinghui ◽  
Zheng Hui ◽  
...  
2010 ◽  
Vol 35 (14) ◽  
pp. 2397 ◽  
Author(s):  
Shian Zhou ◽  
Tetsuji Takamido ◽  
Shinji Imai ◽  
Frank Wise

2009 ◽  
Vol 27 (1) ◽  
pp. 185-190 ◽  
Author(s):  
J.L. Kline ◽  
D.S. Montgomery ◽  
C. Rousseaux ◽  
S.D. Baton ◽  
V. Tassin ◽  
...  

AbstractShort pulse laser plasma interaction experiments using diffraction limited beams provide an excellent platform to investigate the fundamental physics of stimulated Raman scattering. Detailed understanding of these laser plasma instabilities impacts the current inertial confinement fusion ignition designs and could potentially impact fast ignition when higher energy lasers are used with longer pulse durations (>1 kJ and >1 ps). Using short laser pulses, experiments can be modeled over the entire interaction time of the laser using particle-in-cell codes to validate our understanding quantitatively. Experiments have been conducted at the Trident laser facility and the Laboratoire pour l'Utilisation des Lasers Intenses (LULI) to investigate stimulated Raman scattering near the threshold of the instability using 527 nm and 1059 nm laser light, respectively, with 1.5–3.0 ps pulses. In both experiments, the interaction beam was focused into pre-ionized helium gas-jet plasma. Measurements of the reflectivity as a function of intensity and kλD were completed at the Trident laser facility, where k is the electron plasma wave number and λD is the plasma Debye length. At LULI, a 300 fs Thomson scattering probe is used to directly measure the density fluctuations of the driven electron plasma and ion acoustic waves. Work is currently underway comparing the results of the experiments with simulations using the VPIC particle-in-cell code. Details of the experimental results are presented in this manuscript.


2021 ◽  
Vol 60 (28) ◽  
pp. 8787
Author(s):  
Shuang Li ◽  
Ying Wang ◽  
Xiaofeng Liu ◽  
Chenglin Sun ◽  
Wenhui Fang ◽  
...  

2002 ◽  
Vol 216 (3) ◽  
Author(s):  
Ingo Fischer ◽  
V. Krylov ◽  
V. Bespalov ◽  
D. Staselko

Transient stimulated Raman scattering (SRS) is a convenient method to extend the tuning range of short-pulse lasers. In this paper we present results obtained by using 400 nm pump pulses of 2.5 ps duration. After briefly reviewing earlier work on transient SRS in pure hydrogen and in H


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