Peta-Pascal Pressure Driven by Fast Isochoric Heating with Multi-Picosecond Intense Laser Pulse
Abstract
Fast isochoric laser heating is a scheme to heat a matter with relativistic-intensity ( 10 W/cm) laser pulse or X-ray free electron laser pulse. The fast isochoric laser heating has been studied for creating efficiently ultra-high-energy-density (UHED) state. We demonstrate an fast isochoric heating of an imploded dense plasma using a multi-picosecond kJ-class petawatt laser with an assistance of externally applied kilo-tesla magnetic fields for guiding fast electrons to the dense plasma.The UHED state with 2.2 Peta-Pascal is achieved experimentally with 4.6 kJ of total laser energy that is one order of magnitude lower than the energy used in the conventional implosion scheme. A two-dimensional particle-in-cell simulation reveals that diffusive heating from a laser-plasma interaction zone to the dense plasma plays an essential role to the efficient creation of the UHED state.
Cite
@article{arxiv.1907.10447,
title = {Peta-Pascal Pressure Driven by Fast Isochoric Heating with Multi-Picosecond Intense Laser Pulse},
author = {Kazuki Matsuo and Naoki Higashi and Natsumi Iwata and Shohei Sakata and Seungho Lee and Tomoyuki Johzaki and Hiroshi Sawada and Yuki Iwasa and King Fai Farley Law and Hiroki Morita and Yugo Ochiai and Sadaoki Kojima and Yuki Abe and Masayasu Hata and Takayoshi Sano and Hideo Nagatomo and Atsushi Sunahara and Alessio Morace and Akifumi Yogo and Mitsuo Nakai and Hitoshi Sakagami and Tetsuo Ozaki and Kohei Yamanoi and Takayoshi Norimatsu and Yoshiki Nakata and Shigeki Tokita and Junji Kawanaka and Hiroyuki Shiraga and Kunioki Mima and Hiroshi Azechi and Ryosuke Kodama and Yasunobu Arikawa and Yasuhiko Sentoku and Shinsuke Fujioka},
journal= {arXiv preprint arXiv:1907.10447},
year = {2020}
}
Comments
8 pages, 4 figures, 1 table