Characterization of charge state distributions in Near-Infrared Laser-Driven tin plasmas for efficient EUV generation
In this paper, the charge state distributions of extreme ultraviolet (EUV) light source plasmas produced by near-infrared-wavelength lasers are systematically characterized. The spatiotemporal properties of laser-irradiated planar tin targets are examined using radiation-hydrodynamic simulations and...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-08-01
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| Series: | Results in Physics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379725002347 |
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| author | Jang Hyeob Sohn Hyun-Kyung Chung Hyungyu Yu Inki Jeong Sang June Hahn Young-Gui Yoon Hyyong Suk Byoung Ick Cho |
| author_facet | Jang Hyeob Sohn Hyun-Kyung Chung Hyungyu Yu Inki Jeong Sang June Hahn Young-Gui Yoon Hyyong Suk Byoung Ick Cho |
| author_sort | Jang Hyeob Sohn |
| collection | DOAJ |
| description | In this paper, the charge state distributions of extreme ultraviolet (EUV) light source plasmas produced by near-infrared-wavelength lasers are systematically characterized. The spatiotemporal properties of laser-irradiated planar tin targets are examined using radiation-hydrodynamic simulations and non-local thermodynamic equilibrium calculations. Focusing on the distributions of Sn11+–Sn14+ ions, which are primarily responsible for “in-band” EUV emissions, a mean charge state of 12.5 is identified as the optimal ionization level for efficient EUV generation. This prediction is consistent with the experimental observation by Behnke et al. (2021) of short-wavelength spectra in the 7–10 nm range, where the contributions of the Sn11+–Sn14+ ions are well identified. Simulations further reveal that spatially and temporally uniform pulses more efficiently achieve the optimal mean charge state, producing up to 45 % more Sn11+–Sn14+ ions than Gaussian pulses of the same energy. These findings provide foundational insights for advancing laser-driven EUV light sources for industrial applications. |
| format | Article |
| id | doaj-art-01e22f5051844b5b8fcda19786e44974 |
| institution | DOAJ |
| issn | 2211-3797 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj-art-01e22f5051844b5b8fcda19786e449742025-08-20T03:23:29ZengElsevierResults in Physics2211-37972025-08-017510834010.1016/j.rinp.2025.108340Characterization of charge state distributions in Near-Infrared Laser-Driven tin plasmas for efficient EUV generationJang Hyeob Sohn0Hyun-Kyung Chung1Hyungyu Yu2Inki Jeong3Sang June Hahn4Young-Gui Yoon5Hyyong Suk6Byoung Ick Cho7Department of Physics and Photon Science, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, South KoreaKorea Institute of Fusion Energy (KFE), Daejeon 34133, South KoreaDepartment of Physics and Photon Science, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, South KoreaDepartment of Physics, Chung-Ang University, Seoul 06974, South KoreaDepartment of Physics, Chung-Ang University, Seoul 06974, South KoreaDepartment of Physics, Chung-Ang University, Seoul 06974, South KoreaDepartment of Physics and Photon Science, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, South KoreaDepartment of Physics and Photon Science, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, South Korea; Center for Relativistic Laser Science, Institute for Basic Science (IBS), Gwangju 61005, South Korea; Corresponding author.In this paper, the charge state distributions of extreme ultraviolet (EUV) light source plasmas produced by near-infrared-wavelength lasers are systematically characterized. The spatiotemporal properties of laser-irradiated planar tin targets are examined using radiation-hydrodynamic simulations and non-local thermodynamic equilibrium calculations. Focusing on the distributions of Sn11+–Sn14+ ions, which are primarily responsible for “in-band” EUV emissions, a mean charge state of 12.5 is identified as the optimal ionization level for efficient EUV generation. This prediction is consistent with the experimental observation by Behnke et al. (2021) of short-wavelength spectra in the 7–10 nm range, where the contributions of the Sn11+–Sn14+ ions are well identified. Simulations further reveal that spatially and temporally uniform pulses more efficiently achieve the optimal mean charge state, producing up to 45 % more Sn11+–Sn14+ ions than Gaussian pulses of the same energy. These findings provide foundational insights for advancing laser-driven EUV light sources for industrial applications.http://www.sciencedirect.com/science/article/pii/S2211379725002347EUV light sourceLaser-produced plasmaCharge state distribution |
| spellingShingle | Jang Hyeob Sohn Hyun-Kyung Chung Hyungyu Yu Inki Jeong Sang June Hahn Young-Gui Yoon Hyyong Suk Byoung Ick Cho Characterization of charge state distributions in Near-Infrared Laser-Driven tin plasmas for efficient EUV generation Results in Physics EUV light source Laser-produced plasma Charge state distribution |
| title | Characterization of charge state distributions in Near-Infrared Laser-Driven tin plasmas for efficient EUV generation |
| title_full | Characterization of charge state distributions in Near-Infrared Laser-Driven tin plasmas for efficient EUV generation |
| title_fullStr | Characterization of charge state distributions in Near-Infrared Laser-Driven tin plasmas for efficient EUV generation |
| title_full_unstemmed | Characterization of charge state distributions in Near-Infrared Laser-Driven tin plasmas for efficient EUV generation |
| title_short | Characterization of charge state distributions in Near-Infrared Laser-Driven tin plasmas for efficient EUV generation |
| title_sort | characterization of charge state distributions in near infrared laser driven tin plasmas for efficient euv generation |
| topic | EUV light source Laser-produced plasma Charge state distribution |
| url | http://www.sciencedirect.com/science/article/pii/S2211379725002347 |
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