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Nanoscale subsurface dynamics of solids upon high-intensity femtosecond laser irradiation observed by grazing-incidence x-ray scattering
https://repo.qst.go.jp/records/86566
https://repo.qst.go.jp/records/8656699b3f855-c773-4dd7-8fd0-5fcb06c69059
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-11-13 | |||||
| タイトル | ||||||
| タイトル | Nanoscale subsurface dynamics of solids upon high-intensity femtosecond laser irradiation observed by grazing-incidence x-ray scattering | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
L.Randolph
× L.Randolph× M.Banjafar× T.R.Preston× T.Yabuuchi× M.Makita× N.P.Dover× S.Göde× Y.Inubushi× G.Jakob× J.Kaa× Kon, A.× J.K.Koga× D.Ksenzov× T.Matsuoka× M.Nishiuchi× M.Paulus× Ch.Rödel× F.Schon× K.Sueda× Y.Sentoku× T.Togashi× M.Vafaee-Khanjani× M.Bussmann× T.E.Cowan× M.Kläui× C.Fortmann-Grote× A.P.Mancuso× T.Kluge× C.Gutt× M.Nakatsutsumi× Dover, NicholasPeter× Akira, Kon× Kevin Koga, James× Mamiko, Nishiuchi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Observing ultrafast laser-induced structural changes in nanoscale systems is essential for understanding the dynamics of intense light-matter interactions. For laser intensities on the order of 10^14W/cm^2, highly collisional plasmas are generated at and below the surface. Subsequent transport processes such as heat conduction, electron-ion thermalization, surface ablation, and resolidification occur at picosecond and nanosecond timescales. Imaging methods, e.g., using x-ray free-electron lasers (XFEL), were hitherto unable to measure the depth-resolved subsurface dynamics of laser-solid interactions with appropriate temporal and spatial resolution. Here we demonstrate picosecond grazing-incidence small-angle x-ray scattering (GISAXS) from laser-produced plasmas using XFEL pulses. Using multilayer (ML) samples, both the surface ablation and subsurface density dynamics are measured with nanometer depth resolution. Our experimental data challenges the state-of-the-art modeling of matter under extreme conditions and opens new perspectives for laser material processing and high-energy density science. | |||||
| 書誌情報 |
Physical Review Research 巻 4, 号 3, p. 33038, 発行日 2022-07 |
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| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1103/PhysRevResearch.4.033038 | |||||
