@article{oai:repo.qst.go.jp:00079030,
 author = {Kiriyama, Hiromitsu and Miyasaka, Yasuhiro and Sagisaka, Akito and Ogura, Koichi and Nishiuchi, Mamiko and Pirozhkov, Alexander and Fukuda, Yuuji and Kando, Masaki and Kondo, Kiminori and Hiromitsu, Kiriyama and Yasuhiro, Miyasaka and Akito, Sagisaka and Koichi, Ogura and Mamiko, Nishiuchi and Pirozhkov, Alexander and Yuji, Fukuda and Masaki, Kando and Kiminori, Kondo},
 issue = {5},
 journal = {Optics Letters},
 month = {Feb},
 note = {We experimentally explore the generation of pre-pulses by post-pulses, created through internal reflection in the optical components, by the non-linear process associated with the B-integral in the laser chain of the petawatt facility J-KAREN-P. At large time delay between the main and the post-pulses, we have found that the pre-pulses are not generated from their counterpart post-pulses at an identical time difference before the main pulse and the temporal shapes of the pre-pulses are greatly distorted asymmetrically. We have also observed the peak intensities of the pre-pulses are drastically suppressed compared to the expected value at small time delay. We briefly describe the origins of the pre-pulses generated by the post-pulses and demonstrate the removal of the pre-pulses by switching to optical components with a small wedge angle at our petawatt laser facility.},
 pages = {1100--1103},
 title = {Experimental investigation on temporal contrast of pre-pulses by post-pulses in a petawatt laser facility},
 volume = {45},
 year = {2020}
}