The Ultrafast Spectroscopy and Attosecond Science group at the Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, develops experimental methods for measuring and controlling electronic dynamics in molecules on attosecond time scales, during chemical reactions and in the liquid phase. This position is part of Attochirality, a new ERC Advanced Grant project that will establish attosecond chiroptical pump-probe spectroscopy, combining advanced laser systems, attosecond pulses, and electron-ion coincidence detection to study chiral electronic wave packets, charge migration, and charge transfer in various molecular environments.
Tasks
- Lead the realization and commissioning of the optical platform for circularly polarized isolated attosecond pulses, including integration of CEP stabilization, XUV optics, and active path-length stabilization.
- Develop and validate methods for complete temporal and polarization characterization of circularly polarized isolated attosecond pulses using three-dimensional momentum-resolved photoelectron measurements.
- Integrate and commission spin-resolved electron detection.
- Support and scientifically coordinate reaction-microscope experiments on bound electronic wave packets, charge migration, charge transfer, and microhydrated chiral molecules.
- Mentor doctoral and Master's researchers in optical alignment, detector operation, data analysis, and good experimental practice.
- Work closely with the Attochirality team, including electronic and mechanical engineers and external collaborators in spin detection and theoretical modeling.
- Contribute to project planning, risk mitigation, publications, conference presentations, and dissemination of results.
Requirements
- PhD in experimental atomic, molecular or optical physics, physical chemistry, photonics, laser physics, or a closely related field, completed by the starting date.
- Strong publication record demonstrating independent experimental research.
- Substantial hands-on experience in at least two of the following: femtosecond or attosecond laser systems, high-harmonic generation, XUV beamlines, CEP-sensitive experiments, ultrafast pulse characterization, charged-particle momentum spectroscopy, electron detectors, or spin-resolved photoelectron spectroscopy.
- Proven ability to design, construct, commission, and troubleshoot complex optical and vacuum instrumentation.
- Strong skills in experimental control and scientific data analysis, preferably using Python, C/C++, MATLAB, LabVIEW, or related tools.
- Ability to guide junior researchers and coordinate work across a collaborative experimental project.
- Excellent written and spoken English and a rigorous, constructive, and collegial working style.
- Experience with high-harmonic generation, circular-polarization metrology, reaction microscopes/COLTRIMS, Mott or spin-LEED detectors, active interferometric stabilization, or high-repetition-rate laser systems would be particularly valuable.
Benefits
- Fully funded full-time postdoctoral position for one year (renewable up to five years), with preferred starting date 01.10.2026.
- Leading role in the development of a new experimental platform at the frontier of attosecond science and chiral molecular dynamics.
- Substantial scientific independence and opportunity to shape experimental methods and research directions within the ERC project.
- Access to state-of-the-art high-repetition-rate laser systems, XUV sources, reaction-microscope instrumentation, and spin-sensitive detectors.
- Dedicated support from electronic and mechanical engineers and close collaboration with leading international theory and experimental groups.
- Opportunities to supervise junior researchers, build an international scientific profile, and present results at major conferences.
- Internationally competitive employment conditions according to ETH Zurich standards.
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Über uns
Das Team
The Ultrafast Spectroscopy and Attosecond Science group includes electronic and mechanical engineers and collaborates closely with external partners in spin detection and theoretical modeling.