Journal Article

PUBDB-2022-04365

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Time-resolved single-particle x-ray scattering reveals electron-density gradients as coherent plasmonic-nanoparticle-oscillation source

Hoeing, D.Extern* ; Salzwedel, R. ; Worbs, L.CFEL*XFEL.EU*DESY* ; Zhuang, Y.Extern* ; Samanta, A. K.CFEL*XFEL.EU*DESY* ; Luebke, J.CFEL*Extern*XFEL.EU* ; Estillore, A.CFEL*XFEL.EU*DESY* ; Dlugolecki, K.CFEL*XFEL.EU*DESY* ; Passow, C.XFEL.EU*DESY* ; Erk, B.XFEL.EU*DESY* ; Ekanayake, N.Extern*DESY* ; Ramm, D.DESY* ; Correa Magdalena, J.CFEL*DESY* ; Papadopoulou, C.DESY* ; Tul Noor, A.DESY* ; Schulz, F.Extern* ; Selig, M. ; Knorr, A. (Corresponding author) ; Ayyer, K. (Corresponding author)CFEL*MPG*XFEL.EU* ; Küpper, J. (Corresponding author)CFEL*XFEL.EU*DESY* ; Lange, H. (Corresponding author)Extern*XFEL.EU*

2023
ACS Publ. Washington, DC

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Please use a persistent id in citations: doi:10.1021/acs.nanolett.3c00920  doi:10.3204/PUBDB-2022-04365

Report No.: arXiv:2303.04513

Abstract: Dynamics of optically excited plasmonic nanoparticles are presently understood as a series of scattering events involving the initiation of nanoparticle breathing oscillations. According to established models, these are caused by statistical heat transfer from thermalized electrons to the lattice. An additional contribution by hot-electron pressure accounts for phase mismatches between theory and experimental observations. However, direct experimental studies resolving the breathing-oscillation excitation are still missing. We used optical transient-absorption spectroscopy and time-resolved single-particle X-ray diffractive imaging to access the electron system and lattice. The time-resolved single-particle imaging data provided structural information directly on the onset of the breathing oscillation and confirmed the need for an additional excitation mechanism for thermal expansion. We developed a new model that reproduces all of our experimental observations. We identified optically induced electron density gradients as the initial driving source.

Note: 32 pages, 5 figures, 1 supporting information document includedbitte mit dem JA https://bib-pubdb1.desy.de/record/481433 verknüpfen.

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Contributing Institute(s):

1. CFEL-CMI (FS-CFEL-CMI)
2. Forschungsgruppe für strukturelle Dynamik (MPSD)
3. beauftragt von UNI (UNI/CUI)
4. Uni Hamburg / Experimentalphysik (UNI/EXP)
5. DOOR-User (DOOR ; HAS-User)
6. FLASH Wissenschaftlicher Nutzerbetrieb (FS-FLASH-O)
7. FLASH Photonen-Diagnose und Steuerungen (FS-FLASH-D)
8. Laser Forschung und Entwicklung (FS-LA)
9. FS-Detektor Systeme (FS-DS)

Research Program(s):

1. 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) (POF4-631)
2. 6G2 - FLASH (DESY) (POF4-6G2) (POF4-6G2)
3. COMOTION - Controlling the Motion of Complex Molecules and Particles (614507) (614507)
4. DFG project 390715994 - EXC 2056: CUI: Advanced Imaging of Matter (390715994) (390715994)
5. DFG project 194651731 - EXC 1074: Hamburger Zentrum für ultraschnelle Beobachtung (CUI): Struktur, Dynamik und Kontrolle von Materie auf atomarer Skala (194651731) (194651731)
6. DFG project 432266622 - Plasmonkontrolle mit THz Pulsen (432266622) (432266622)
7. FS-Proposal: F-20190741 (F-20190741) (F-20190741)

Experiment(s):

1. FLASH Beamline BL1 (FLASH)

Appears in the scientific report 2023

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Database coverage:
; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 10 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Hoeing, D. ; Salzwedel, R. ; Worbs, L.CFEL*XFEL.EU*DESY* ; Zhuang, Y.Extern* ; Samanta, A. K.CFEL*XFEL.EU*DESY* ; Lübke, J.CFEL*Extern*XFEL.EU* ; Estillore, A. D.CFEL*XFEL.EU*DESY* ; Dlugolecki, K.CFEL*XFEL.EU*DESY* ; Passow, C.XFEL.EU*DESY* ; Erk, B.XFEL.EU*DESY* ; Ekanayake, N.Extern*DESY* ; Ramm, D.DESY* ; Correa, J.CFEL*DESY* ; Papadopoulou, C. C.DESY* ; Noor, A. T. ; Schulz, F. ; Selig, M. ; Knorr, A. (Corresponding author) ; Ayyer, K. (Corresponding author)CFEL*MPG*XFEL.EU* ; Küpper, J. (Corresponding author)CFEL*XFEL.EU*DESY* ; Lange, H. (Corresponding author)
Time-Resolved Single-Particle X-ray Scattering Reveals Electron-Density Gradients As Coherent Plasmonic-Nanoparticle-Oscillation Source
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