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

Cherenkov waveguide design for THz production at the EuXFEL

TUPM032
3 Jun 2025, 16:00
2h
Exhibiton Hall A _Magpie (TWTC)

Exhibiton Hall A _Magpie

TWTC

Poster Presentation MC2.A25 THz sources Tuesday Poster Session

Speaker

Karel Peetermans (Deutsches Elektronen-Synchrotron DESY)

Description

The EuXFEL R&D project, STERN, aims to provide X-ray users with an accelerator-based THz source synchronized with the X-ray repetition rate. The main proposed THz generation method consists of electron beam wakefield excitation in Cherenkov waveguides. This work focuses on the design of a copper block that holds an array of waveguides to cover the radiation spectrum spanning from 300 GHz to 30 THz. These will include a variety of lengths and dielectric layer thicknesses to vary the spectral contents of the excited TM modes. Additionally, driving the wakefield generation process with an off-axis electron beam causes the excitation of HE modes, which are of great interest to the user community and add to the spectral content of the THz pulse. To further increase pulse energy, the implementation of radiation incouplers is analyzed, demonstrating the potential for capturing the electron beams self-field completely. Such wakefield structures offer a novel option for delivering versatile THz sources tailored to next-generation pump-probe experiments.

Region represented Europe
Paper preparation format LaTeX

Author

Karel Peetermans (Deutsches Elektronen-Synchrotron DESY)

Co-author

Dr Francois Lemery (Deutsches Elektronen-Synchrotron DESY)

Presentation materials

There are no materials yet.