1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

Echo-enabled harmonic generation at the DELTA storage ring

MOPB007
2 Jun 2025, 16:00
2h
Exhibiton Hall A _Bear (TWTC)

Exhibiton Hall A _Bear

TWTC

Poster Presentation MC2.A05 Synchrotron Radiation Facilities Monday Poster Session

Speaker

Shaukat Khan (TU Dortmund University)

Description

Echo-enabled harmonic generation (EEHG) has been proposed as a seeding method for free-electron lasers but can also be employed to generate ultrashort radiation pulses at electron storage rings. With a twofold laser-electron interaction in two undulators ("modulators"), each followed by a magnetic chicane, an electron phase space structure with high harmonic content is produced, which gives rise to coherent emission of radiation at short wavelengths. The duration of the coherently emitted pulses in a third undulator ("radiator") is given by the laser pulse durations. Thus, EEHG pulses can be three orders of magnitude shorter but still more intense than conventional synchrotron light pulses. The worldwide first storage ring implementation of EEHG was undertaken at the 1.5-GeV synchrotron light source DELTA at TU Dortmund University by reconfiguring an electromagnetic undulator. With a total length of only 4.75 m, the setup is very compact and fits in a single straight section. The paper presents technical aspects of the EEHG implementation as well as first results.

Funding Agency

Work supported by DFG (contract INST212/236-1), BMBF (contracts
05K22PE1 and 05K22PE4), and by the Federal State NRW.

Region represented Europe
Paper preparation format LaTeX

Author

Shaukat Khan (TU Dortmund University)

Co-authors

Arjun Radha Krishnan (TU Dortmund University) Benedikt Büsing (TU Dortmund University) Carsten Mai (TU Dortmund University) Vivek Vijayan (TU Dortmund University) Wael Salah (The Hashemite University) Mr Zohair Usfoor (TU Dortmund University)

Presentation materials

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