PhD position on high-order harmonic generation spectroscopy in noble-gas liquids

Design and perform experiments on high-order harmonic generation in liquid and gas-phase targets Develop and operate cryogenic liquid-jet systems for noble-gas liquids Implement advanced ultrafast laser techniques (e.g., few-cycle pulses, two-colour fields, CEP stabilization) Analyze experimental data to extract information on electron dynamics (cut-off scaling, phase, emission times) Contribute to the development of new experimental methods in attosecond spectroscopy Present results at international conferences and publish in high-impact journals

We are offering a PhD position in attosecond science and strong-field physics at the Laboratory of Physical Chemistry, ETH Zürich. The project focuses on high-order harmonic generation (HHG) in noble-gas liquids, in particular liquid helium. This research aims to explore a new regime of ultrafast electron dynamics in condensed matter and to bridge the gap between gas-phase and liquid-phase HHG. The position offers the opportunity to work at the forefront of attosecond spectroscopy using state-of-the-art ultrafast laser systems and cryogenic technology. This 4-year PhD position is funded by our SNSF grant.

• Master’s degree in physics, physical chemistry, or a closely related field

• Strong interest in ultrafast laser science, attosecond physics, or strong-field phenomena

• Experimental skills and motivation to work on complex laboratory setups

• Ability to work independently and as part of a collaborative research team

• Good communication skills in English (spoken and written)

• Experience in one or more of the following areas is an advantage: ultrafast optics, nonlinear optics, HHG/strong-field physics, vacuum technology, spectroscopy, or scientific programming (Python, MATLAB)