Context : At FEMTO-ST, we work on the development of microcell-based optical clocks. A first demonstrator is based on the frequency stabilization of a 895 nm laser onto a Cs microcell using dual-frequency sub-Doppler spectroscopy . Other studies are starting by using the two-photon transition of Rb atom at 778 nm [5,6]. Numerous metrological and technological studies remain to be performed to push these clocks to their ultimate performances. The candidate will be fully involved on this research topic and will contribute to the progress of this strategic activity at FEMTO-ST. The candidate will contribute to the implementation of lab-prototype microcell based optical clocks and to their metrological characterization, in particular for its frequency stability.
The candidate will integrate the team-project “Miniature cell clocks” at FEMTO-ST, involving members of the OHMS group (http://teams.femto-st.fr/equipe-ohms/) [Time-Frequency Dpt] and members of the MOSAIC group (https://teams.femto-st.fr/MOSAIC/en) [Micro-Nano Sciences and Systems Dpt]. The team-project in which the candidate will evolve is currently composed of 3 researchers, 1 postdoc and 4 PhD students. The candidate will benefit from the support of electronics/mechanics/computing services at FEMTO-ST and of an infrastructure devoted to time-frequency metrology (http://oscillator-imp.com/dokuwiki/doku.php) and MEMS technologies (https://www.femto-st.fr/e /Platforms/MIMENTO-Presentation). The candidate will communicate results in scientific journals and international conferences.
The candidate has a PhD. The candidate should have a significant interest for applied physics sciences in general. Background with atomic clocks or sensors and metrology will be a strong plus-value. The candidate should enjoy working in a team group
Requis : PhD thesis in physics / applied physics / engineering sciences
Start: From 1st september 2022
Duration : 1 year + 1-time extension possible
Salary: between 2500 and 3700 € (gross salary), depending on years of experience
Procedure: Apply on https://emploi.cnrs.fr/Offres/CDD/UMR6174-RODBOU-001/Default.aspx