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Diffraction effect of the seams between the segmented gratings in a single-pass tiled-grating compressor

Ying Chun-Tong Wei Xiao-Feng Zhu Qi-Hua Wang Xiao Liu Hong-Jie Huang Zheng Guo Yi Zuo Yan-Lei

Diffraction effect of the seams between the segmented gratings in a single-pass tiled-grating compressor

Ying Chun-Tong, Wei Xiao-Feng, Zhu Qi-Hua, Wang Xiao, Liu Hong-Jie, Huang Zheng, Guo Yi, Zuo Yan-Lei
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  • Abstract views:  3274
  • PDF Downloads:  971
  • Cited By: 0
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  • Received Date:  09 November 2006
  • Accepted Date:  14 December 2006
  • Published Online:  20 October 2007

Diffraction effect of the seams between the segmented gratings in a single-pass tiled-grating compressor

  • 1. (1)清华大学工程物理系,北京 100084; (2)中国工程物理研究院激光聚变研究中心,绵阳 621900; (3)中国工程物理研究院激光聚变研究中心,绵阳 621900;清华大学工程物理系,北京 100084

Abstract: By using Fourier optics, a model based on the far field about the Gauss pulse is set up,by which the effect of seams on the far field can be studied. Numerical simulation shows that pulse-width narrowing will appear in the case of single seam and the Fourier-translation-limited pulse-width of the input pulse will determine whether the pulse width in the far field becomes narrow or broad. In addition, the irradiance in the focus decreases and two sub-peaks appear beside the central peak, and their intensties increase with the widening of seams.

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