| Literature DB >> 23381258 |
Hiromitsu Kiriyama1, Takuya Shimomura, Hajime Sasao, Yoshiki Nakai, Manabu Tanoue, Shuji Kondo, Shuhei Kanazawa, Alexander S Pirozhkov, Michiaki Mori, Yuji Fukuda, Mamiko Nishiuchi, Masaki Kando, Sergei V Bulanov, Keisuke Nagashima, Mitsuru Yamagiwa, Kiminori Kondo, Akira Sugiyama, Paul R Bolton, T Tajima, Noriaki Miyanaga.
Abstract
We demonstrate the temporal contrast enhancement in a petawatt-class Ti:sapphire chirped-pulse amplification (CPA) laser system. An extra saturable absorber, introduced downstream after a low-gain optical parametric chirped-pulse amplification (OPCPA) preamplifier, has improved the temporal contrast in the system to 1.4×10(12) on the subnanosecond time scale at 70 TW power level. We have achieved 28 J of uncompressed broadband output energy with this system, indicating the potential for reaching peak powers near 600 TW.Year: 2012 PMID： 23381258 DOI： 10.1364/OL.37.003363
Source DB: PubMed Journal: Opt Lett ISSN： 0146-9592 Impact factor: 3.776