PostDoctoral position in the CRISTAL beamline (m/f) — Academic Positions
Reference : Postdoc-CRISTAL-2017
Application deadline: 30th June 2017
Photo-induced structural dynamics in crystals
(100 fs to 1µs timescales)
SOLEIL is the French national synchrotron facility, located on the Saclay Plateau near Paris. It is a multi-disciplinary instrument and a research laboratory, whose mission is to run research programs using synchrotron radiation, to develop state-of-the-art instrumentation on the beamlines, and to make those available to the scientific community. SOLEIL, a unique tool for both academic research and industrial applications across a wide range of disciplines including physics, biology, chemistry etc., is used by over 5 000 researchers coming from France and abroad. It is based on a state-of-the-art synchrotron source, both in terms of brilliance and stability. The facility is a “public” company employing about 500 people, founded by the CNRS and the CEA, and partner of the Paris-Saclay University.
The CRISTAL beamline is a hard X-ray (5 — 30 keV), undulator-based beamline, dedicated to single crystal and powder diffraction with state-of-the-art techniques (high-resolution, time-resolved and coherent diffraction) []. It is operated by a team of 4 scientists, 1 technician and 1 PhD student. A variety of subjects can be studied at CRISTAL beamline, in all disciplines of science, which makes it a very stimulating beamline to work at.
The candidate will participate to the scientific activity related to photo-induced structural dynamics, which is lead by Claire Laulhé at the beamline. The setup for time-resolved pump-probe diffraction has been developped since 2011. The beamline is equipped with a Ti:Sa laser which delivers 40 fs pulses of near infrared photons, up to 5 mJ energy at a repetition rate of 1 kHz. Those pulses are used to excite samples. The photo-induced signal is measured with a time resolution which corresponds to the X-ray pulse duration: 100 ps, 10 ps and 150 fs X-ray pulses are available at CRISTAL, using the standard modes of the machine [], the low-alpha mode [] and the femto-slicing source [] respectively.
The following tasks will be assigned to the successful candidate:
- He/She will take part to all time-resolved experiments performed at the beamline (up to 10 weeks a year).
- He/She will develop his/her own research. At the beamline, expertise in the field of correlated systems, functional oxydes, and molecular systems.
- A new laser system is currently being installed in order to benefit from a femto-slicing source of 150 fs X-ray pulses at a repetition rate of 5 kHz. The candidate will participate to this phase of instrumental development, as well as to the tests with the new femto-slicing source.
II. Training and experience
To qualify, applicants must hold a Ph.D. or equivalent and have significant experience with pump-probe techniques. Knowledge of diffraction and experience with synchrotron facilities would be appreciated. The candidate should be fluent in English (written and spoken). Practice of French is also highly desirable.
III. General conditions
The offer concerns a Post-doctoral contract for a two year-period (one-year renewable once). A wide range of valuable training programs, research and upgrading opportunities will be accessible. Moreover, the position benefits of a progressive employment conditions and a flexible work-life balance policy. The place of work will be at Synchrotron SOLEIL, which is located in the Paris suburbs (Saint-Aubin).
The application should include a motivation letter, a Curriculum Vitae, the publications list and the contacts of three references. Application should be registered directly on the SOLEIL website:
Tel: 33 (0)220.127.116.11.35
[] V.L.R. Jacques et al., Phys. Rev. Lett. 117, 156401 (2016)
[] C. Laulhé et al., Eur. Phys. J. Special Topics 222, 1277–1285 (2013)