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We study ultrafast phenomena in quantum materials. One focus lies on the transport of electrons and their angular momentum triggered by femtosecond laser pulses. The associated processes often coincide with the femtosecond time scale and, thus, terahertz frequency scale. Consequently, to study such extremely fast dynamics, we develop novel tools like ultrafast ampere-meters, ohm-meters and strong terahertz voltage sources, which greatly rely on femtosecond optical pulses and ultrabroadband terahertz electromagnetic transients. To better understand our experimental results, we work out simple theoretical models. We also explore our results directly for applications in terahertz photonics, including the development of novel emitters, detectors and modulators of broadband terahertz radiation.



Job description:
You will participate in a project on the ultrafast dynamics of angular momentum of electrons in spin-orbitronic nanostructures. You will deal with cutting-edge optical setups, femtosecond laser systems, analysis tools and modeling.

Requirements:
Completed university studies with a Master degree preferentially in physics.

Desirable:

• Experience in at least two of the following areas: femtosecond laser spectroscopy, solid-state physics, magnetism, spin transport.
• Team spirit, endurance and enthusiasm for new ideas and topics
• Good English language skills
• Master in Physics with very good grades
• Knowledge on/experience in solid-state physics, magnetism or femtosecond lasers

For further information, please contact Dr. Tom S. Seifert (tom.seifert@fu-berlin.de) or Prof. Dr. Tobias Kampfrath (tobias.kampfrath@fu-berlin.de / +49 858 57858).

Applications should be sent by e-mail, together with significant documents, indicating the reference code, no later than May 12^th, 2025 in PDF format (preferably as one document) to Prof. Dr. Tobias Kampfrath: b.selke@fu-berlin.de or postal to

Freie Universität Berlin
Fachbereich Physik
Institut für Experimentalphysik
AG Kampfrath, Terahertz Physics Group
Prof. Dr. Tobias Kampfrath
Arnimallee 14
14195 Berlin (Dahlem)

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Freie Universität Berlin is an equal opportunity employer.

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