Single shot third-order cross-correlator for ultra-high intensity laser

超高強度レーザーのためのシングルショットクロスコリレータ

今 亮; 西内 満美子; 桐山 博光; 小倉 浩一; 榊 泰直; 福田 祐仁; 神門 正城; 近藤 公伯

Kon, Akira; Nishiuchi, Mamiko; Kiriyama, Hiromitsu; Ogura, Koichi; Sakaki, Hironao; Fukuda, Yuji; Kando, Masaki; Kondo, Kiminori

We have developed a multi-channel cross-correlator (MCCC) for single-shot measurement of temporal contrast of Peta-watt class laser pulse. The MCCC is based on third order cross correlation which is typically used in a delay-scanning. Moreover, our system is adopted reference measurement channel with which shot to shot peak intensity fluctuations is normalized on a single shot. We will report experimental results with the MCCC system.