Postdoc on High-Harmonic Metrology of Solids and Liquids

Postdoc on High-Harmonic Metrology of Solids and Liquids

ARCNL - Advanced Research Center for Nanolithography

Amsterdam, Netherlands

The new Short Wavelength Light Sources for EUV Metrology group at ARCNL, Amsterdam, has an opening for a postdoctoral researcher (2-year contract).

Project Overview:

You will develop new ultrafast femtosecond-to-attosecond spectroscopy techniques in the EUV/soft-X-ray spectral range using a laboratory-based high-harmonic generation (HHG) setup. This includes:

• Developing HHG-based spectroscopic and interferometric techniques to measure interface and layer properties in multilayer solids and liquids;
• Designing methods to actively tune the EUV spectrum based on interlayer geometry and composition;
• Investigating dynamical evolution at interfaces and contributing to bridging attosecond science with industrial applications.

You will design and perform experiments, analyze data, and collaborate with other researchers within ARCNL and the ultrafast science community. The position also involves publishing results in peer-reviewed journals and presenting at international conferences.

Qualifications

Mandatory:

You have (or will receive in the near future) a PhD degree in ultrafast light-matter interaction. You enjoy performing experiments and analysis to stepwise build a deeper understanding of complex physical mechanisms. For this position, we are particularly looking for a candidate who can combine state-of-the-art ultrafast laser optics with instrument development and building. A solid background in both optics/optics engineering and condensed matter physics would be ideal.

Experience in one or more of the following topics is required:

• High-harmonic generation in gas, solids, liquids or 2D materials;
• Ultrafast lasers and optics;
• Condensed matter physics;
• Fundamental optical processes in solids;
• Attosecond and femtosecond science;
• EUV and X-ray spectroscopy and interferometry;
• Vacuum instrumentation.

Additionally, programming and large data handling for data analysis (Python, MATLAB) and very good verbal and written communication skills in English are required.

Preferred:

Preference will be given to candidates with:

• Familiarity with ML-based phase-retrieval algorithms;
• Experience with facility-based experimental expertise (Free-electron laser/Synchrotron) on solids/liquids.