article · Nature Communications · 2019
Enhancing laser beam performance by interfering intense laser beamlets
A. Morace, Natsumi Iwata, Y. Sentoku, K. Mima, Yasunobu Arikawa, Akifumi Yogo, А. А. Андреев, S. Tosaki, X. Vaisseau, Y. Abe, Sadaoki Kojima, Shohei Sakata, M. Hata, Seungho Lee, Kazuki Matsuo, N. Kamitsukasa, T. Norimatsu, Junji Kawanaka, Shigeki Tokita, N. Miyanaga, H. Shiraga, Y. Sakawa, M. Nakai, H. Nishimura, H. Azechi, Shinsuke Fujioka, R. Kodama
Cited by 23Open access
Abstract
Increasing the laser energy absorption into energetic particle beams represents a longstanding quest in intense laser-plasma physics. During the interaction with matter, part of the laser energy is converted into relativistic electron beams, which are the origin of secondary sources of energetic ions, γ-rays and neutrons. Here we experimentally demonstrate that using multiple coherent laser beamlets spatially and temporally overlapped, thus producing an interference pattern in the laser focus, significantly improves the laser energy conversion efficiency into hot electrons, compared to one beam with the same energy and nominal intensity as the four beamlets combined. Two-dimensional particle-in-cell simulations support the experimental results, suggesting that beamlet interference pattern induces a periodical shaping of the critical density, ultimately playing a key-role in enhancing the laser-to-electron energy conversion efficiency. This method is rather insensitive to laser pulse contrast and duration, making this approach robust and suitable to many existing facilities.
Cite this paper
Morace, A., Iwata, N., Sentoku, Y., Mima, K., Arikawa, Y., Yogo, A., Андреев, А. А., Tosaki, S., Vaisseau, X., Abe, Y., Kojima, S., Sakata, S., Hata, M., Lee, S., Matsuo, K., Kamitsukasa, N., Norimatsu, T., Kawanaka, J., Tokita, S., . . . Kodama, R. (2019). Enhancing laser beam performance by interfering intense laser beamlets. Nature Communications, 10(1), 2995. https://doi.org/10.1038/s41467-019-10997-1
Morace, A., et al. “Enhancing laser beam performance by interfering intense laser beamlets.” Nature Communications, vol. 10, no. 1, 2019, p. 2995, https://doi.org/10.1038/s41467-019-10997-1.
Morace, A., Natsumi Iwata, Y. Sentoku, K. Mima, Yasunobu Arikawa, Akifumi Yogo, А. А. Андреев, et al. 2019. “Enhancing laser beam performance by interfering intense laser beamlets.” Nature Communications 10 (1): 2995. https://doi.org/10.1038/s41467-019-10997-1.
Morace, A. et al. (2019) ‘Enhancing laser beam performance by interfering intense laser beamlets’, Nature Communications, 10(1), p. 2995. Available at: https://doi.org/10.1038/s41467-019-10997-1.
@article{morace2019enhancing,
title = {{Enhancing laser beam performance by interfering intense laser beamlets}},
author = {Morace, A. and Iwata, Natsumi and Sentoku, Y. and Mima, K. and Arikawa, Yasunobu and Yogo, Akifumi and Андреев, А. А. and Tosaki, S. and Vaisseau, X. and Abe, Y. and Kojima, Sadaoki and Sakata, Shohei and Hata, M. and Lee, Seungho and Matsuo, Kazuki and Kamitsukasa, N. and Norimatsu, T. and Kawanaka, Junji and Tokita, Shigeki and Miyanaga, N. and Shiraga, H. and Sakawa, Y. and Nakai, M. and Nishimura, H. and Azechi, H. and Fujioka, Shinsuke and Kodama, R.},
journal = {Nature Communications},
volume = {10},
number = {1},
pages = {2995},
year = {2019},
doi = {10.1038/s41467-019-10997-1}
}Made from the index record. Check names, capitalisation and page numbers against the paper. Need another style? AI for Research has over 10,000.