High-Contrast, High-Intensity Petawatt-Class Laser and Applications
| Autor: | Mamiko Nishiuchi, Tomas Mocek, Masaki Kando, Antonio Lucianetti, Sergei V. Bulanov, Hideyuki Kotaki, M. Kanasaki, Koichi Ogura, David Vojna, Venkatesan Jambunathan, Timur Zh. Esirkepov, Kiminori Kondo, Magdalena Sawicka-Chyla, Hironao Sakaki, Michiaki Mori, Ondrej Slezak, Alexander S. Pirozhkov, Akito Sagisaka, Hiromitsu Kiriyama, Akira Kon, Yuji Fukuda, Yukio Hayashi, James Koga, Paul R. Bolton |
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| Rok vydání: | 2015 |
| Předmět: |
Physics
Distributed feedback laser business.industry Far-infrared laser Physics::Optics Saturable absorption Laser pumping Laser Atomic and Molecular Physics and Optics law.invention Laser linewidth Optics law Optoelectronics Laser power scaling Laser beam quality Electrical and Electronic Engineering business |
| Zdroj: | IEEE Journal of Selected Topics in Quantum Electronics. 21:232-249 |
| ISSN: | 1558-4542 1077-260X |
| Popis: | A high-contrast high-intensity petawatt-class Ti:sapphire chirped-pulse amplification laser has been developed for research on high field science. A saturable absorber and a low-gain optical parametric chirped-pulse amplification preamplifier in the front-end have improved the temporal contrast in the system to ∼ $2 \times 10^{12}$ on the subnanosecond time scale at the ∼70 TW power level. In addition to the high-contrast broadband high-energy output from the final amplifier has been achieved with a flat-top spatial profile with a filling factor of ∼70%. This is the result of pump beam spatial profile homogenization with diffractive optical elements. The system produces the uncompressed output pulse energy of 29 J, indicating the capability for reaching a peak power of ∼600 TW. We discuss in detail the design, performance, and characterization of the laser including output power, pulse duration, and spatiotemporal beam quality. We also describe the on-going upgrade of the laser system and some applications for the laser in relativistic dominated laser–matter interactions. |
| Databáze: | OpenAIRE |
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