| Zugriffsnummer | 45499 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Experimental demonstration of the mechanism of steady-state microbunching |
| Autor(in); Institution |
Deng, Xiujie; Department of Engineering Physics, Tsinghua University, Beijing, CHINA
Chao, Alexander; Institute for Advanced Study, Tsinghua University, Beijing, CHINA
Feikes, Jörg; Helmholtz-Zentrum Berlin (HZB), Berlin, GERMANY
Hoehl, Arne; 7.1, Radiometrie mit Synchrotronstrahlung, PTB-Berlin
Huang, Wenhui; Department of Engineering Physics, Tsinghua University, Beijing, CHINA
Klein, Roman; 7.2, Röntgenmesstechnik mit Synchrotronstrahlung, PTB-Berlin
Kruschinski, Arnold; Helmholtz-Zentrum Berlin (HZB), Berlin, GERMANY
Li, Ji; Helmholtz-Zentrum Berlin (HZB), Berlin, GERMANY
Matveenko, Aleksandr; Helmholtz-Zentrum Berlin (HZB), Berlin, GERMANY
Petenev, Yuriy; Helmholtz-Zentrum Berlin (HZB), Berlin, GERMANY
Ries, Markus; Helmholtz-Zentrum Berlin (HZB), Berlin, GERMANY
Tang, Chuanxiang; Department of Engineering Physics, Tsinghua University, Beijing, CHINA
Yan, Lixin; Department of Engineering Physics, Tsinghua University, Beijing, CHINA
|
| Quelle/Jahr | Nature: 590 (2021), 7847, 576 - 579 |
| ISSN | 0028-0836 (PRINT) ; 1476-4687 (ONLINE) |
| DOI | |
| Verlag | Basingstoke: Springer Nature Limited |
| Zusammenfassung | The use of particle accelerators as photon sources has enabled advances in science and technology. Currently the workhorses of such sources are storage-ring-based synchrotron radiation facilities and linear-accelerator-based free-electron lasers. Synchrotron radiation facilities deliver photons with high repetition rates but relatively low power, owing to their temporally incoherent nature. Free-electron lasers produce radiation with high peak brightness, but their repetition rate is limited by the driving sources. The steady-state microbunching (SSMB) mechanism has been proposed to generate high-repetition, high-power radiation at wavelengths ranging from the terahertz scale to the extreme ultraviolet. This is accomplished by using microbunching-enabled multiparticle coherent enhancement of the radiation in an electron storage ring on a steady-state turn-by-turn basis. A crucial step in unveiling the potential of SSMB as a future photon source is the demonstration of its mechanism in a real machine. Here we report an experimental demonstration of the SSMB mechanism. We show that electron bunches stored in a quasi-isochronous ring can yield sub-micrometre microbunching and coherent radiation, one complete revolution after energy modulation induced by a 1,064-nanometre-wavelength laser. Our results verify that the optical phases of electrons can be correlated turn by turn at a precision of sub-laser wavelengths. On the basis of this phase correlation, we expect that SSMB will be realized by applying a phase-locked laser that interacts with the electrons turn by turn. This demonstration represents a milestone towards the implementation of an SSMB-based high-repetition, high-power photon source. |
| Themenbereich der Metrologie | Photometrie und Radiometrie |
Zitierung
Deng, X., Chao, A., Feikes, J., Hoehl, A., Huang, W., Klein, R., Kruschinski, A., Li, J., Matveenko, A., Petenev, Y., Ries, M., Tang, C., & Yan, L. (2021). Experimental demonstration of the mechanism of steady-state microbunching. Nature, 590(7847), 576–579. https://doi.org/10.1038/s41586-021-03203-0