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Two-dimensional beam smoothing by broadband random-phase irradiation |
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| Authors: | Isao Matsushima Toshihisa Tomie Yuji Matsumoto Isao Okuda Eisuke Miura Hidehiko Yashiro Eiichi Takahashi Yoshiro Owadano |
| Affiliation: | Electrotechnical Laboratory, 1-1-4, Umezono, Tsukuba, 305, Japan |
| Abstract: | A new technique for two-dimensional smoothing is proposed to generate smooth laser irradiation profiles on laser fusion targets employing the broad bandwidth of KrF lasers. In this technique, a wedged etalon is used to get angular dispersion to the orthogonal direction to the one-dimensional broadband random-phase smoothing effect. The preliminary experiment has demonstrated its effectiveness. |
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