Generation of intense phase-stable femtosecond hard X-ray pulse pairs

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, cohere...

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Published inProceedings of the National Academy of Sciences - PNAS Vol. 119; no. 12; pp. 1 - 5
Main Authors Zhang, Yu, Kroll, Thomas, Weninger, Clemens, Michine, Yurina, Fuller, Franklin D., Zhu, Diling, Alonso-Mori, Roberto, Sokaras, Dimosthenis, Lutman, Alberto A., Halavanau, Aliaksei, Pellegrini, Claudio, Benediktovitch, Andrei, Yabashi, Makina, Inoue, Ichiro, Inubushi, Yuichi, Osaka, Taito, Yamada, Jumpei, Babu, Ganguli, Salpekar, Devashish, Sayed, Farheen N., Ajayan, Pulickel M., Kern, Jan, Yano, Junko, Yachandra, Vittal K., Yoneda, Hitoki, Rohringer, Nina, Bergmann, Uwe
Format Journal Article
LanguageEnglish
Published United States National Academy of Sciences 22.03.2022
Proceedings of the National Academy of Sciences
Subjects
Atom and Molecular Physics and Optics
Atom- och molekylfysik och optik (Här ingår: Kemisk fysik, kvantoptik)
Femtosecond pulses
femtosecond x-ray pulses
Free electron lasers
frequency combs
Fysik
Interference fringes
interferometry
Lasers
Manganese
Natural Sciences
Naturvetenskap
nonlinear x-ray spectroscopy
PARTICLE ACCELERATORS
phase-stable x-ray pulse pairs
Photons
Physical Sciences
Physics
stimulated emission and superfluorescence
X ray imagery
x-ray sciences
X-rays sciences
frequency combs
interferometry
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ISSN0027-8424
1091-6490
1091-6490
DOI10.1073/pnas.2119616119

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Summary: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.
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JPSJ KAKENHI
76SF00515; AC02-76SF00515; 19K20604; P41GM103393; AC02-05CH11231; GM055302; GM110501; GM126289; F32GM116423
National Institutes of Health (NIH)
USDOE Office of Science (SC), Biological and Environmental Research (BER)
USDOE Laboratory Directed Research and Development (LDRD) Program
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division
Ruth L. Kirschstein National Research Service Award
Author contributions: T.K., C.W., Y.M., F.D.F., D.Z., R.A.-M., D.S., M.Y., I.I., Y.I., T.O., J.Y., J.K., J.Y., V.K.Y., H.Y., and U.B. performed the research; G.B., D.S., F.N.S., and P.M.A. contributed to reagents/analytical tools; Y.Z., C.W., A.A.L., A.H., C.P., A.B., N.R., and U.B. analyzed the data; and Y.Z., A.B., N.R., and U.B. wrote the paper.
Contributed by Claudio Pellegrini; received November 1, 2021; accepted February 2, 2022; reviewed by Ursula Keller and Markus Kowalewski
ISSN:0027-8424
1091-6490
1091-6490
DOI:10.1073/pnas.2119616119