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The contrast measurements of ultra-short laser pulses from a typical Ti:Sapphire oscillator have been performed using homemade second- and third-order correlator respectively. The two correlators were all demonstrated a dynamic range of 108.
This paper adopts cylinder lens to improve the ability of pulse contrast measurement based on a pulse replicator. Cylinder lens were used to generate linear beam to get a temporal window in auto-correlation and cross correlation. Now they are introduced into a pulse replicator to obtain continuous temporal range. It is analyzed that some parameters need to satisfy a relationship for the window's continuer...
This paper elucidated how to evaluate wavefront property by precisely diagnose far field distribution. A Phi350 mm far field diagnostic device was designed to be applied on the 9th beam of Shenguang-II. The performance in 2007 indicated that 70% of total energy was focused in a 5 times of the diffraction limit diameter circle, while 95% of total energy was focused in a 13 times of the diffraction...
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