Post doctorale position SMIS Beamline

SOLEIL is the French national synchrotron facility, located on the Saclay Plateau near Paris. It is a multi-disciplinary instrument and research laboratory whose mission is to conduct research using synchrotron radiation, to develop cutting edge instrumentation on the beamlines, and to make these developments available to the scientific community. SOLEIL synchrotron, a unique tool for both academic research and industrial applications across a wide range of disciplines including physics, biology, chemistry etc., opened in 2008. It is used annually by thousands researchers from France and abroad. SOLEIL is based on a synchrotron source that is state-of-the-art both in terms of brilliance and stability. This large scale facility, a partner of the Université Paris Saclay, is a “publically owned” private company, founded by the CNRS and the CEA.

SMIS is an infrared spectromicroscopy beamline that delivers high-brilliance radiation in the mid and far-IR spectral range. The synchrotron beam is split to operate two endstations in parallel. The beamline is dedicated to multiscale spectromicroscopy, allowing up to ~20 nm spatial resolution and up to several cm sample size combining several instruments. We offer a variety of environmental conditions including pressure, temperature, atmosphere and polarization control.

Multidimensional measurements are often challenged by long acquisition times or limited resolution. The A3SmartML project develops methods to significantly improve the efficiency of such measurements. The development combines tools from machine learning, compressed sensing, regularisation and Bayesian statistics. Several metrological case studies are treated to demonstrate immediate impact. Long-term impact will be generated through generic, automated, and adaptive measurement plans applicable to a wide range of multidimensional measurement tasks. To further facilitate the uptake of the developed procedures, extensive guidance documents, documented software and reference datasets will be provided.

The selected candidate will actively contribute to data collection, data analysis, report writing and discussions and will be involved in the day-to-day activities of the SMIS beamline.

I. Missions

Under the supervision of the SMIS beamline responsible, the postdoc will:

• Participate in the data collection for developing AI algorithms aimed to decrease data collection time.
• Perform data analysis on conventional and compressed data.
• Contribute to the technical reports and scientific discussions for the project.
• Support external users during beamtime and participate in internal beamline development experiments.
• Develop or adapt data analysis workflows and contribute to the improvement of the scientific throughput of the SMIS beamline.
• Participate in developments of the instrumentation of the SMIS beamline.
• Disseminate results through presentations at international conferences and publications in peer-reviewed journals.
• Have the opportunity to pursue his/her personal research and develop his/her personal scientific network as the preset goals of the main project permit.

II. Qualifications and Expertises

Required:

• PhD in Physics, Materials Science, Chemistry, or a related field.
• Proven, solid background in optics, (infrared) spectroscopy, condensed matter studies or low-temperature physics.
• Hands-on experience with experimental instrumentation, and instrumentation development.
• Strong data analysis skills; knowledge of Python is a plus.
• Good communication and organisational skills.
• Proven experience with working at synchrotron user facilities.
• Fluency in English (spoken and written).

Desirable:

• Experience with the development of optical setups.
• Experience with sSNOM measurements and instrumentation.

III. General conditions

This is a 12-months position without a possibility for extension.