Performance of the smoothing of small target spots in frequency-tripled high-power laser

Xiujuan Jiang; Jinghui Li

doi:10.1117/12.906931

6 February 2012 Performance of the smoothing of small target spots in frequency-tripled high-power laser

Xiujuan Jiang, Jinghui Li

Proceedings Volume 8236, Laser Resonators, Microresonators, and Beam Control XIV; 823625 (2012) https://doi.org/10.1117/12.906931
Event: SPIE LASE, 2012, San Francisco, California, United States

Abstract

The uniform irradiation performance of the small target spots for indirect-drive inertial confinement fusion is studied. A lens array and the technique of smoothing by spectral dispersion are included in the frequency-tripled high-power laser driver. The intensity distributions of the target spots are simulated and their spatial power spectra are analyzed. The results show that spots of clear envelopes can be obtained with a lens array and smoothing by spectral dispersion has obvious effects in eliminating high-contrast intensity modulation inside the spots, even in the cases they are very small. With the two methods of beam smoothing, performance of indirect-drive experiments is expected to be evidently improved.

Citation Download Citation

Xiujuan Jiang and Jinghui Li "Performance of the smoothing of small target spots in frequency-tripled high-power laser", Proc. SPIE 8236, Laser Resonators, Microresonators, and Beam Control XIV, 823625 (6 February 2012); https://doi.org/10.1117/12.906931

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