Journal
HIGH POWER LASER SCIENCE AND ENGINEERING
Volume 10, Issue -, Pages -Publisher
CHINESE LASER PRESS & CAMBRIDGE UNIV PRESS
DOI: 10.1017/hpl.2022.15
Keywords
high-power lasers; laser plasma; plasma mirror
Categories
Funding
- JST-Mirai Program, Japan [JPMJMI17A1]
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We present the design and characterization of a plasma mirror system installed on the J-KAREN-P laser. The system achieved a reflectivity exceeding 80% and improved temporal contrast by two orders of magnitude at 1 ps before the main pulse. Furthermore, the near-field spatial distribution of the laser remained constant with a plasma mirror fluence of less than 100 kJ/cm(2). We also investigated the differences and fluctuations in energy, pulse width, and pointing stability with and without the plasma mirror system.
We report on the design and characterization of the plasma mirror system installed on the J-KAREN-P laser at the Kansai Photon Science Institute, National Institutes for Quantum Science and Technology. The reflectivity of the single plasma mirror system exceeded 80%. In addition, the temporal contrast was improved by two orders of magnitude at 1 ps before the main pulse. Furthermore, the laser near-field spatial distribution after the plasma mirror was kept constant at plasma mirror fluence of less than 100 kJ/cm(2). We also present the results of investigating the difference and the fluctuation in energy, pulse width and pointing stability with and without the plasma mirror system.
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