Single-shot pulse-contrast measurement based on high-orderquasi-phase-matchingcross-correlation

Jingui Ma; Yongzhi Wang; Peng Yuan; Guoqiang Xie; Heyuan Zhu; Liejia Qian

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Single-shot pulse-contrast measurement based on high-orderquasi-phase-matchingcross-correlation

机译：基于高阶准相位匹配互相关的单次脉冲对比度测量

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We propose a novel single-shot pulse-contrast measurement approach based on high-order quasi-phase-matching (QPM) cross correlation. It supports perfect contrast measurement with features of no artifacts, high resolution, and large temporal window. The prototype experiment based on the noncollinear third QPM with a beam crossing angle of 90 deg, using femtosecond Ti:sapphire laser pulses with a contrast of ～10~7, demonstrates an artifacts-free measurement with a temporal window of ～70 ps and a resolution of ～900 fs.

机译：我们提出了一种基于高阶准相位匹配（QPM）互相关的新颖的单次脉冲对比度测量方法。它支持完美的对比度测量，具有无伪影，高分辨率和宽大的时间窗的功能。基于非共线第三QPM且具有90度光束交叉角的原型实验，使用飞秒的Ti：蓝宝石激光脉冲，对比度为〜10〜7，证明了无伪影的测量，时间窗为〜70 ps，并且分辨率〜900 fs。

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《Optics Letters》 |2012年第21期|共3页
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Jingui Ma; Yongzhi Wang; Peng Yuan; Guoqiang Xie; Heyuan Zhu; Liejia Qian;
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Single-shot pulse-contrast measurement based on high-orderquasi-phase-matchingcross-correlation

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