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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 Ziemann31Center 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.

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