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Relaxation dynamics in excited helium nanodroplets probed with high resolution, time-resolved photoelectron spectroscopy

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dc.contributor.author LaForge, A. C. en_US
dc.contributor.author MANDAL, S. et al. en_US
dc.date.accessioned 2023-04-21T09:28:52Z
dc.date.available 2023-04-21T09:28:52Z
dc.date.issued 2022-12 en_US
dc.identifier.citation Physical Chemistry Chemical Physics, 24(47), 28844-28852. en_US
dc.identifier.issn 1463-9076 en_US
dc.identifier.issn 1463-9084 en_US
dc.identifier.uri https://doi.org/10.1039/D2CP03335F en_US
dc.identifier.uri http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/7738
dc.description.abstract Superfluid helium nanodroplets are often considered as transparent and chemically inert nanometer-sized cryo-matrices for high-resolution or time-resolved spectroscopy of embedded molecules and clusters. On the other hand, when the helium nanodroplets are resonantly excited with XUV radiation, a multitude of ultrafast processes are initiated, such as relaxation into metastable states, formation of nanoscopic bubbles or excimers, and autoionization channels generating low-energy free electrons. Here, we discuss the full spectrum of ultrafast relaxation processes observed when helium nanodroplets are electronically excited. In particular, we perform an in-depth study of the relaxation dynamics occurring in the lowest 1s2s and 1s2p droplet bands using high resolution, time-resolved photoelectron spectroscopy. The simplified excitation scheme and improved resolution allow us to identify the relaxation into metastable triplet and excimer states even when exciting below the droplets' autoionization threshold, unobserved in previous studies. en_US
dc.language.iso en en_US
dc.publisher Royal Society of Chemistry en_US
dc.subject Liquid-helium en_US
dc.subject Clusters en_US
dc.subject Electron en_US
dc.subject States en_US
dc.subject HE en_US
dc.subject Excitations en_US
dc.subject Molecules en_US
dc.subject Droplets en_US
dc.subject Atoms en_US
dc.subject Pure en_US
dc.subject 2022 en_US
dc.title Relaxation dynamics in excited helium nanodroplets probed with high resolution, time-resolved photoelectron spectroscopy en_US
dc.type Article en_US
dc.contributor.department Dept. of Chemistry en_US
dc.identifier.sourcetitle Physical Chemistry Chemical Physics en_US
dc.publication.originofpublisher Foreign en_US


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