Coherent narrowband light source for ultrafast photoelectron spectroscopy in the 17-31 eV photon energy range.
Journal
Structural dynamics (Melville, N.Y.)
ISSN: 2329-7778
Titre abrégé: Struct Dyn
Pays: United States
ID NLM: 101660872
Informations de publication
Date de publication:
Jan 2020
Jan 2020
Historique:
received:
10
10
2019
accepted:
13
01
2020
entrez:
11
2
2020
pubmed:
11
2
2020
medline:
11
2
2020
Statut:
epublish
Résumé
Here, we report on a novel narrowband High Harmonic Generation (HHG) light source designed for ultrafast photoelectron spectroscopy (PES) on solids. Notably, at 16.9 eV photon energy, the harmonics bandwidth equals 19 meV. This result has been obtained by seeding the HHG process with 230 fs pulses at 515 nm. The ultimate energy resolution achieved on a polycrystalline Au sample at 40 K is ∼22 meV at 16.9 eV. These parameters set a new benchmark for narrowband HHG sources and have been obtained by varying the repetition rate up to 200 kHz and, consequently, mitigating the space charge, operating with
Identifiants
pubmed: 32039283
doi: 10.1063/1.5131216
pii: 1.5131216
pmc: PMC6994270
doi:
Types de publication
Journal Article
Langues
eng
Pagination
014303Informations de copyright
© 2020 Author(s).
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