Nanoscale subsurface dynamics of solids upon high-intensity femtosecond laser irradiation observed by grazing-incidence x-ray scattering

被引：6

作者：

Randolph, Lisa ^{[1
]}

Banjafar, Mohammadreza ^{[2
,3
]}

Preston, Thomas R. ^{[2
]}

Yabuuchi, Toshinori ^{[4
,5
]}

Makita, Mikako ^{[2
]}

Dover, Nicholas P. ^{[6
]}

Roedel, Christian ^{[7
]}

Goede, Sebastian ^{[2
]}

Inubushi, Yuichi ^{[4
,5
]}

Jakob, Gerhard ^{[8
]}

Kaa, Johannes ^{[2
,9
]}

Kon, Akira ^{[6
]}

Koga, James K. ^{[6
]}

Ksenzov, Dmitriy ^{[1
]}

Matsuoka, Takeshi ^{[10
,11
]}

Nishiuchi, Mamiko ^{[6
]}

Paulus, Michael ^{[9
]}

Schon, Frederic ^{[1
]}

Sueda, Keiichi ^{[5
]}

Sentoku, Yasuhiko ^{[12
]}

Togashi, Tadashi ^{[4
,5
]}

Bussmann, Michael ^{[13
,14
]}

Cowan, Thomas E. ^{[3
,13
]}

Klaeui, Mathias ^{[8
]}

Fortmann-Grote, Carsten ^{[2
]}

Huang, Lingen ^{[13
]}

Mancuso, Adrian P. ^{[2
,15
]}

Kluge, Thomas ^{[13
]}

Gutt, Christian ^{[1
]}

Nakatsutsumi, Motoaki ^{[2
,10
]}

机构：

[1] Univ Siegen, Dept Phys, D-57072 Siegen, Germany

[2] European XFEL, D-22869 Schenefeld, Germany

[3] Tech Univ Dresden, D-01069 Dresden, Germany

[4] Japan Synchrotron Radiat Res Inst JASRI, Sayo, Hyogo 6795198, Japan

[5] RIKEN SPring 8 Ctr, Sayo, Hyogo 6795148, Japan

[6] Natl Inst Quantum Sci & Technol, Kansai Photon Sci Inst, Kyoto 6190215, Japan

[7] Tech Univ Darmstadt, D-64289 Darmstadt, Germany

[8] Johannes Gutenberg Univ Mainz, Inst Phys, D-55128 Mainz, Germany

[9] TU Dortmund, Fak Phys DELTA, D-44221 Dortmund, Germany

[10] Osaka Univ, Open & Transdisciplinary Res Inst, Suita, Osaka 5650087, Japan

[11] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650087, Japan

[12] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan

[13] Helmholtz Zentrum Dresden Rossendorf, D-01328 Dresden, Germany

[14] Ctr Adv Syst Understanding CASUS, D-02826 Gorlitz, Germany

[15] La Trobe Univ, La Trobe Inst Mol Sci, Dept Chem & Phys, Melbourne, Vic 3086, Australia

来源：

PHYSICAL REVIEW RESEARCH | 2022年 / 4卷 / 03期

基金：

欧洲研究理事会;

关键词：

IN-CELL CODE; DOMAIN INTERFEROMETER; ABSORPTION; MATTER; TEMPERATURES; SIMULATIONS; REFLECTION; PULSES;

D O I：

10.1103/PhysRevResearch.4.033038

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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(14) W/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.

引用

页数：11

共 65 条

[1]

[Anonymous], US, DOI [10.1103/PhysRevResearch.4.033038, DOI 10.1103/PHYSREVRESEARCH.4.033038]

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