Dresden 2013 – scientific programme
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T: Fachverband Teilchenphysik
T 126: Beschleunigerphysik XIII (Synchrotronstrahlung/THz)
T 126.8: Talk
Thursday, March 7, 2013, 15:45–16:00, WIL-C207
EEHG at FLASH and DELTA* — •Robert Molo1, Markus Höner1, Holger Huck1, Kirsten Hacker1, Shaukat Khan1, Andreas Schick1, Peter Ungelenk1, Maryam Zeinalzadeh1, Peter Van der Meulen2, Peter Salen2, Gergana Angelova Hamberg3, and Volker Ziemann3 — 1Center for Synchrotron Radiation (DELTA), TU Dortmund University, Germany — 2Stockholm University, Sweden — 3Uppsala University, Sweden
The echo-enabled harmonic generation (EEHG) scheme utilizes two modulators with two magnetic chicanes in order to generate an electron density modulation with high harmonic content. In contrast to free-electron lasers (FEL) based on self-amplified spontaneous emission (SASE), the radiation of an EEHG FEL has better longitudinal coherence and is naturally synchronized with an external laser, which is advantageous for pump-probe applications. At the free-electron laser in Hamburg (FLASH), an EEHG experiment is currently under preparation. The short-pulse facility at DELTA (a 1.5-GeV synchrotron light source operated by the TU Dortmund University) based on coherent harmonic generation (CHG) will be upgraded using the EEHG technique in order to reach shorter wavelengths.
*Supported by DFG, BMBF, and the Federal State NRW.