Master Thesis: Zoneplate imaging of magnetic structures using laser-based high harmonics
With a staff of 4700, Forschungszentrum Jülich - a member of the Helmholtz Association of German National Research Centres - is one of the largest interdisciplinary research centres in Europe.
Our research interest is the laser-induced demagnetization of ferromagnets, which we examine time-resolved and element-selectively in a pump-probe setup with high harmonic radiation. We use High Harmonic Generation (HHG) to convert the photon energy of 1.5 eV from a fs-laser to ultrashort XUV light pulses ranging from 20 eV to 70 eV. This radiation reaches the core levels of ferromagnets and offers the unique possibility of imaging small structures and, especially, magnetic domain patterns with unprecedented resolution. Furthermore, as the radiation is delivered in form of ultrafast pulses, laser high harmonics are ideal for time-resolved imaging experiments. The implementation of zone plates, by providing deep sub-micrometer spatial resolution, is expected to substantially extend our insight into physical processes governing ultrafast spin dynamics.
We’re looking for a motivated person who will start his or her Masters work in our Magnetization Dynamics Group. He or she will in collaboration with a bachelor student design and develop zoneplates in our cleanroom facilities. The zoneplates will be then used in the experimental setup for imaging of small structures and ultimately, for imaging of magnetic domains. For this purpose the XUV beamline will be aligned to include zone-plate imaging experiment.
- Bachelor in physics
- Very good knowledge of solid state and laser physics
High motivation and fascination of lasers and magnetism
What we offer
- Experienced and friendly research team
- Excellent experimental equipment in cleanroom and Laserlab
- Working and learning in a cutting-edge research environment
Prof. Dr. C. M. Schneider
Phone: +49-2461-61 4428
Dr. Roman Adam
Phone: +49-2461-61 4214
Peter Grünberg Institut (PGI-6)