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Electron thermalization and ion acceleration in XUV-produced plasma from nanoparticles in He gas environment

  • We use intense femtosecond extreme ultraviolet (XUV) pulses with a photon energy of 92 eV from the FLASH free electron laser to irradiate substrate-free CsCl nanoparticles surrounded by a He gas with a number density of around 1015 cm−3. By simultaneously detecting electrons and energetic ions from the laser-irradiated micron-size target we study the acceleration mechanism of light ions at the microplasma-vacuum boundary as well as at the layer close to the nanoparticle surface. When the XUV pulse interacts with the gas alone, helium ions are accelerated to energies exceeding 100 eV. In the presence of the nanoparticle, light ions gain additional energy in the electric field around the ionized nanoparticle and their energy spectrum changes considerably. We present an electrostatic model to explain the ion acceleration mechanisms both with and without the nanoparticle and discuss the role of the gas environment in experiments.

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Metadaten
URN:urn:nbn:de:kobv:526-opus4-19818
Publisher DOI:https://doi.org/10.1088/1367-2630/ada575
Author:Eva KlimesovaORCiD, Olena Kulyk, Lucas Janos Martin, Bernd SchütteORCiD, Ulrike FrühlingORCiD, Markus Drescher, Rui Pan, Nikola Stojanovic, Ivette J. Bermudez MaciasORCiD, Stefan DüstererORCiD, Jakob AndreassonORCiD, Marek Wieland, Maria KrikunovaORCiD
Parent Title (English):New Journal of Physics
Document Type:Article
Language:English
Year of Publication:2025
Volume:27
Article Number:013004
Publisher:Institute of Physics Publishing (IOP); Deutsche Physikalische Gesellschaft
Faculties an central facilities:Fachbereich Ingenieur- und Naturwissenschaften
Publishing Institution:Technische Hochschule Wildau
Tag:electron and ion spectroscopy; free electron laser; light–matter interaction; nanoparticle injection
Source:Eva Klimešová et al 2025 New J. Phys. 27 013004
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 621 Angewandte Physik
Licence (German):Creative Commons - CC BY - Namensnennung 4.0 International
Release Date:2025/01/17
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