Summer Student Projects Submission 2025

Ultrathin liquid jet systems for probing electronic and vibrational coherences in solution

Not scheduled

20m

Speakers

Oliviero Cannelli (FS-ATTO (Attosecond Science and Technology)) Sabine Rockenstein (FS-ATTO (Attosecond Science and Technology))

Description

Are you curious about how atoms and electrons move on the fastest timescales imaginable? Join the Attosecond Science Group (https://atto.cfel.de) at the Center for Free-Electron Laser Science (CFEL), where we create and harness ultrashort laser pulses with durations in the attosecond (1 as = 10$^{-18}\,$s) and few-femtosecond (1 fs = 10$^{-15}\,$s) range. These pulses allow us to observe and manipulate ultrafast dynamics in systems ranging from bio-relevant molecules to clusters and nanoscale materials. By exploring these fundamental processes, we aim to deepen our understanding of the earliest steps in photochemistry and pave the way for potential control over these ultrafast reactions.
What You'll Do:
In this project, you’ll be involved in cutting-edge research focused on creating and probing coherent wavepacket dynamics in molecular systems. A key challenge in performing these measurements in solution phase at extreme timescales is the development of ultrathin flat jets capable of operating in vacuum environments. You will gain hands-on experience with:
• Preparing and handling chemical solutions for ultrafast experiments.
• Working with vacuum chambers and turbomolecular pumps to maintain precise experimental conditions.
• Utilizing advanced liquid jet technologies, including microsheet nozzles, extraction systems, and recirculation setups for stable jet operation.
• Performing preliminary pump-probe measurements at few femtosecond time scales in solution phase
This project offers a unique opportunity to work at the intersection of ultrafast laser science and fluid dynamics, developing both experimental skills and an understanding of complex molecular processes in solution.
Who Should Apply:
We welcome motivated students with a background in physics, physical chemistry, chemical engineering, or related fields. Experience with fluid dynamics, vacuum systems, or laser-based experiments is a plus, but not essential. A strong interest in experimental research and a willingness to engage with interdisciplinary challenges are the most important qualifications!