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Mainz 2022 – scientific programme

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 4: Radiation Generation and Applications

AKBP 4.3: Talk

Monday, March 28, 2022, 16:30–16:45, AKBP-H14

Spectro-temporal properties of CHG radiation — •Arjun Radha Krishnan, Benedikt Büsing, Arne Held, Hubertus Kaiser, Shaukat Khan, Carsten Mai, and Vivek Vijayan — Center for Synchrotron Radiation (DELTA), TU Dortmund University, Dortmund, Germany

The short-pulse facility at the 1.5-GeV synchrotron light source DELTA, operated by the TU Dortmund University, currently employs the Coherent Harmonic Generation (CHG) technique to generate ultrashort coherent radiation pulses in the vacuum ultraviolet spectrum. This is achieved via a laser-induced electron energy modulation and a subsequent dispersive section which converts it to a corresponding density modulation. The spectro-temporal properties of the CHG pulses can be manipulated by the chirp of the seed laser pulses and the strength of the dispersive chicane (R56).

CHG spectra for 400 nm, 266 nm and 200 nm were recorded under variation of R56 and laser chirp of the 800 nm seed laser pulses. The measured spectra and results of numerical simulations to reconstruct the spectra will be presented.

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