Refine your search:     
Report No.
 - 

High dynamic range multi-channel cross-correlator for single-shot time contrast measurement

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

Real-time temporal contrast of an ultrahigh-intensity laser pulse is a crucial parameter for laser plasma interaction experiments. We have developed a multi-channel cross-correlator (MCCC) for single-shot measurement of high temporal contrast (10$$^{12}$$) of Petawatt class laser pulse. The MCCC is based on a third order cross-correlator which is typically used in a delay-scanning mode, and has a four independent optical delay and channels. We have experimentally demonstrated that the MCCC system achieves the high dynamic range of $$sim$$10$$^{12}$$ and large temporal window of $$sim$$1 ns. Our technique is simple and powerful tool in order to measure shot-to-shot fluctuation of pre-pulse/pedestal mainly due to amplified spontaneous emission (ASE), in particular, for the large high-power laser system in low repetition-rate operation.

Accesses

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.