Generation of intense phase-stable femtosecond hard X-ray pulse pairs.
X-rays sciences
frequency combs
interferometry
Journal
Proceedings of the National Academy of Sciences of the United States of America
ISSN: 1091-6490
Titre abrégé: Proc Natl Acad Sci U S A
Pays: United States
ID NLM: 7505876
Informations de publication
Date de publication:
22 03 2022
22 03 2022
Historique:
entrez:
15
3
2022
pubmed:
16
3
2022
medline:
21
4
2022
Statut:
ppublish
Résumé
Coherent nonlinear spectroscopies and imaging in the X-ray domain provide direct insight into the coupled motions of electrons and nuclei with resolution on the electronic length scale and timescale. The experimental realization of such techniques will strongly benefit from access to intense, coherent pairs of femtosecond X-ray pulses. We have observed phase-stable X-ray pulse pairs containing more than 3 × 107 photons at 5.9 keV (2.1 Å) with ∼1 fs duration and 2 to 5 fs separation. The highly directional pulse pairs are manifested by interference fringes in the superfluorescent and seeded stimulated manganese Kα emission induced by an X-ray free-electron laser. The fringes constitute the time-frequency X-ray analog of Young’s double-slit interference, allowing for frequency domain X-ray measurements with attosecond time resolution.
Identifiants
pubmed: 35290124
doi: 10.1073/pnas.2119616119
pmc: PMC8944280
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e2119616119Subventions
Organisme : NIGMS NIH HHS
ID : R01 GM126289
Pays : United States
Organisme : NIGMS NIH HHS
ID : R56 GM055302
Pays : United States
Organisme : NIGMS NIH HHS
ID : R01 GM110501
Pays : United States
Organisme : NIGMS NIH HHS
ID : P41 GM103393
Pays : United States
Organisme : NIGMS NIH HHS
ID : R01 GM055302
Pays : United States
Organisme : DOE | Office of Science (SC)
ID : 76SF00515
Organisme : NIGMS NIH HHS
ID : F32 GM116423
Pays : United States
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