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- Title
High-harmonic generation from a flat liquid-sheet plasma mirror.
- Authors
Kim, Yang Hwan; Kim, Hyeon; Park, Seong Cheol; Kwon, Yongjin; Yeom, Kyunghoon; Cho, Wosik; Kwon, Taeyong; Yun, Hyeok; Sung, Jae Hee; Lee, Seong Ku; Luu, Tran Trung; Nam, Chang Hee; Kim, Kyung Taec
- Abstract
High-harmonic radiation can be generated when an ultra-intense laser beam is reflected from an over-dense plasma, known as a plasma mirror. It is considered a promising technique for generating intense attosecond pulses in the extreme ultraviolet and X-ray wavelength ranges. However, a solid target used for the formation of the over-dense plasma is completely damaged by the interaction. Thus, it is challenging to use a solid target for applications such as time-resolved studies and attosecond streaking experiments that require a large amount of data. Here we demonstrate that high-harmonic radiation can be continuously generated from a liquid plasma mirror in both the coherent wake emission and relativistic oscillating mirror regimes. These results will pave the way for the development of bright, stable, and high-repetition-rate attosecond light sources, which can greatly benefit the study of ultrafast laser-matter interactions. High-harmonic generation (HHG) is a nonlinear process and has been explored with different forms of plasma target. Here the authors report HHG using a liquid plasma mirror as a possible way for the generation of stable and intense attosecond pulses at a high-repetition rate.
- Subjects
ATTOSECOND pulses; LIGHT sources; LASER beams; MIRRORS; FUSION reactor divertors; RADIATION
- Publication
Nature Communications, 2023, Vol 14, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-023-38087-3