Few-cycle laser driven reaction nanoscopy on aerosolized silica nanoparticles

Philipp Rupp, Christian Burger, Nora G. Kling, Matthias Kübel, Sambit Mitra, Philipp Rosenberger, Thomas Weatherby, Nariyuki Saito, Jiro Itatani, Ali S. Alnaser, Markus B. Raschke, Eckart Rühl, Annika Schlander, Markus Gallei, Lennart Seiffert, Thomas Fennel, Boris Bergues () and Matthias F. Kling ()
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Philipp Rupp: Max Planck Institute of Quantum Optics
Christian Burger: Max Planck Institute of Quantum Optics
Nora G. Kling: Max Planck Institute of Quantum Optics
Matthias Kübel: Max Planck Institute of Quantum Optics
Sambit Mitra: Max Planck Institute of Quantum Optics
Philipp Rosenberger: Ludwig-Maximilians-Universität Munich
Thomas Weatherby: Ludwig-Maximilians-Universität Munich
Nariyuki Saito: The University of Tokyo
Jiro Itatani: The University of Tokyo
Ali S. Alnaser: American University of Sharjah
Markus B. Raschke: University of Colorado
Eckart Rühl: Freie Universität Berlin
Annika Schlander: Technical University Darmstadt
Markus Gallei: Saarland University
Lennart Seiffert: Rostock University
Thomas Fennel: Rostock University
Boris Bergues: Max Planck Institute of Quantum Optics
Matthias F. Kling: Max Planck Institute of Quantum Optics

Nature Communications, 2019, vol. 10, issue 1, 1-7

Abstract: Abstract Nanoparticles offer unique properties as photocatalysts with large surface areas. Under irradiation with light, the associated near-fields can induce, enhance, and control molecular adsorbate reactions on the nanoscale. So far, however, there is no simple method available to spatially resolve the near-field induced reaction yield on the surface of nanoparticles. Here we close this gap by introducing reaction nanoscopy based on three-dimensional momentum-resolved photoionization. The technique is demonstrated for the spatially selective proton generation in few-cycle laser-induced dissociative ionization of ethanol and water on SiO2 nanoparticles, resolving a pronounced variation across the particle surface. The results are modeled and reproduced qualitatively by electrostatic and quasi-classical mean-field Mie Monte-Carlo (M3C) calculations. Reaction nanoscopy is suited for a wide range of isolated nanosystems and can provide spatially resolved ultrafast reaction dynamics on nanoparticles, clusters, and droplets.

Date: 2019
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DOI: 10.1038/s41467-019-12580-0

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