Electron Density Structure Measurements With Scattered Intense Laser Beam
ABSTRACT Short‐pulse intense lasers have the potential to model extreme astrophysical environments in laboratories. Although there are diagnostics for energetic electrons and ions resulting from laser‐plasma interactions, the diagnostics to measure velocity distribution functions at the interaction region of the laser and plasma are limited. We have been developing the diagnostics of the interaction between the intense laser and plasma using scattered intense laser. We performed experiments to measure electron density by observing the spatial distributions and the ratio of horizontal to vertical polarization components of the scattered laser beam using optical imaging. The observed ratio of polarization components is consistent with the drive laser beam, indicating the observed light originates from the drive laser. Imaging of the scattered light shows the structure of electron density, the zero moment of the electron velocity distribution function, interacting with the intense laser. We observed the change of structure due to the laser pre‐pulse that destroys the target before the arrival of the main pulse.
Authors
- T. Minami (ORCID: https://orcid.org/0000-0002-2074-2031)
- Wei‐Yen Woon (ORCID: https://orcid.org/0000-0001-7299-9122)
- K. Sakai (ORCID: https://orcid.org/0000-0001-9879-9532)
- Nobuhiko Nakanii (ORCID: https://orcid.org/0000-0003-3936-6192)
- S. Isayama (ORCID: https://orcid.org/0000-0002-7531-8211)
- Harihara Sudhan Kumar (ORCID: https://orcid.org/0000-0003-3135-0428)
- Yuji Fukuda (ORCID: https://orcid.org/0000-0002-1348-0483)
- K. Himeno
- Kazuoki Kuramoto (ORCID: https://orcid.org/0009-0003-9773-1474)
- Akira Kon (ORCID: https://orcid.org/0000-0003-4728-2079)
- Takeshi Asai (ORCID: https://orcid.org/0000-0002-5624-6187)
- Yao-Li Liu (ORCID: https://orcid.org/0000-0001-7991-4347)
- A. O. Tokiyasu (ORCID: https://orcid.org/0000-0001-8761-4782)
- Tatiana A Pikuz (ORCID: https://orcid.org/0000-0002-5971-9250)
- Kentaro Tomita (ORCID: https://orcid.org/0000-0002-0748-7953)
- Masato Kanasaki (ORCID: https://orcid.org/0000-0002-7668-5216)
- Yasuhiro Kuramitsu (ORCID: https://orcid.org/0000-0002-0160-2260)
- Y. Abe (ORCID: https://orcid.org/0000-0003-3730-3630)
- Shuta Tanaka (ORCID: https://orcid.org/0000-0002-8796-1992)
- Chun‐Sung Jao (ORCID: https://orcid.org/0000-0002-4488-3306)
- H. Kohri (ORCID: https://orcid.org/0000-0001-6212-3426)
- F. Nikaido (ORCID: https://orcid.org/0009-0004-6769-274X)
- Kuan-Ting Wu (ORCID: https://orcid.org/0009-0002-2792-5460)
- Hiromitsu Kiriyama (ORCID: https://orcid.org/0000-0002-4862-6569)
- C. M. Chu (ORCID: https://orcid.org/0000-0002-0350-287X)
- K. Kondo
Institutions
- Hokkaido University of Science (JP)
- Aoyama Gakuin University (JP)
- Kyushu University (JP)
- Tohoku University (JP)
- Hokkaido University (JP)
- National Central University (TW)
- National Institute for Fusion Science (JP)
- National Institutes for Quantum Science and Technology (JP)
- Kobe University (JP)
- National Cheng Kung University (TW)
- The University of Osaka (JP)
Publication Details
- Journal
- Contributions to Plasma Physics
- Published
- 2025-05-23
- DOI
- https://doi.org/10.1002/ctpp.70020
- Citations
- 1
- Primary Topic
- Electron and X-Ray Spectroscopy Techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.66
Funders
- Sumitomo Foundation
- Ministry of Education, Culture, Sports, Science and Technology
- Kyushu University
- Japan Society for the Promotion of Science
- National Institutes of Natural Sciences
- National Institute for Fusion Science