A novel backscatter focus diagnostic for the TRIDENT 200 TW laser

作者：Gautier D C^*; Flippo K A; Letzring S A; Shimada J Workman T; Johnson R P; Hurry T R; Gaillard S A; Hegelich B M

来源：Review of Scientific Instruments, 2008, 79(10): 10F547.

DOI：10.1063/1.2979881

• optical focusing
• plasma diagnostics
• plasma-beam interactions

Here we present the first direct focal spot images and analysis of an ultrahigh intensity short-pulse laser focus (>5x10(19) W/cm(2)) on target. Such a focal spot characterization is typically done previous to the shot with a low-power alignment beam using equivalent plane imaging techniques. The resulting intensity of the shot is then inferred from these results. We report on the development of a backscatter focus diagnostic, which enables imaging of the on-target full-power focal spot.

• 出版日期2008-10