Spatial shape the laser beams to achieve the uniform irradiation required for laser direct-driven fusion

Yong Li, Zhiwei Lu, Chengyu Zhu, Dexin Ba, Shujie Liu

Research output: Contribution to journalArticlepeer-review

Abstract

The nonuniformity of the irradiation on the target is eliminated by adjusting the intensity distribution on the cross section of the incident laser beams while keeping the position and direction of the beams that are used for indirect-driven laser fusion unchanged. A simulating program that can calculate the intensity distribution on spherical target with several beams irradiating on it is written. The intensity distribution on the target and its nonuniformity are worked out according to the condition of the incident beams. Then the distribution on the focal plane of the beams is educed by using the principle of weighted average. Finally the laser's electric field distribution before the lens that is necessary for the uniform irradiation is obtained based on the laser transmission theory.

Original languageEnglish
Pages (from-to)101-103
Number of pages3
JournalZhongguo Jiguang/Chinese Journal of Lasers
Volume35
Issue numberSUPPL.
StatePublished - Mar 2008
Externally publishedYes

Bibliographical note

Funding Information:
The authors gratefully acknowledge the assistance of Drs. D. Trisler, W. Patton and W. Hudak. This work has been supported in part by research grant R44 CA43424 from the National Cancer Institute of the National Institutes of Health.

Keywords

  • Laser direct driven fusion
  • Laser physics
  • Laser transmission
  • Spatial shaping
  • Uniform irradiation

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