Description
Electro-optically active crystals change their birefringence in electromagnetic fields. As the Coulomb field around a relativistic electron bunch resembles the current profile, probing the induced birefringence with a laser provides a non-invasive measurement of the temporal profile of fast changing fields, or the temporal profile of electron bunches in accelerators.
A newly installed setup for electro-optical bunch length detection is installed at FLASH and will be commissioned this summer. The student will take part in the final steps of the commissioning and first measurements, which includes lasts tests (and fixes...) of the used electronics and laser optics as well as test of the integration into the accelerator control system and first measurements from the accelerator control room, as well as measurements at the existing setup ay the EuropeanXFEL.
Further information on the EO setup: Rev. Sci. Instrum. 91, 045123 (2020); https://doi.org/10.1063/1.5142833
Special Qualifications:
Prerequisites:
Interest in and (some knowledge on) optics and lasers is needed. Some programming skills are helpful, but not mandatory.
| Field | B4: Research on Accelerators |
|---|---|
| DESY Place | Hamburg |
| DESY Division | M |
| DESY Group | MSK |
