Mehdi Langlois is a Research Technologist at the Jet Propulsion Laboratory in the Quantum Sciences & Technology group. He participates in research in optical ion clock and atom interferometer inertial sensors.

Before, he was a Research Fellow at the University of Birmingham, UK. He led the development of compact cold atom gravity gradiometers in the Atom Interferometry team during three years and then became Co-I to develop a strontium interferometer within the Atom Interferometry Observatory and Network consortium.

Mehdi Langlois obtained his PhD from the Pierre and Marie Curie University in 2017 on the design and the realization of a cold atom gravity gradiometer at the Paris Observatory. During his PhD he developed recent tools for atom interferometry, such as an atom chip to generate ultracold atoms and a fibred laser bench to generate moving lattice and large momentum transfer. He also worked on a cold atom gravimeter to compensate the laser wavefront aberration with a MEMS deformable mirror.

Before his PhD he worked as a Research Engineer at the Paris Observatory to assemble and characterize a compact atomic clock, with which he performed trials during microgravity flights.

• PhD in Quantum Physics, Pierre and Marie Curie University, Paris, France (2017).
• MSc in Fundamental Physics, University of Paris-Sud, Orsay, France (2013).
• BSc in Physics, University Paris-Sud, Orsay, France (2010).

Cold atoms, atom interferometry, quantum clock, quantum accelerometer, light-matter interaction modeling.

• Research Technologist, Jet Propulsion Laboratory (2022 - present).
• Research Fellow, University of Birmingham (2017 – 2021).
• Teaching Fellow, University of Paris-Sud (2016 – 2017)
• Research Engineer, Paris Observatory (2013 – 2014)

1. Polychromatic atom optics for atom interferometry, EPJ Quantum Technol. 10, 9 (2023).
2. Doppler compensated cavity for atom interferometry, Opt. Express 30, 30001-30011 (2022).
3. Quantum sensing for gravity cartography, Nature 602, 590–594 (2022).
4. Circulating pulse cavity enhancement as a method for extreme momentum transfer atom interferometry, Commun Phys 4, 257 (2021).
5. Reduction of background scattered light in vacuum systems for cold atoms experiments, AIP Advances 10, 105125 (2020).
6. AION: an atom interferometer observatory and network, JCAP 05, 011 (2020).
7. Compact cold atom clock for on-board timebase: tests in reduced gravity, Phys. Rev. Applied 10, 064007 (2018).
8. Differential phase extraction in dual interferometers exploiting the correlation between classical and quantum sensors, Phys. Rev. A 96, 053624 (2017).
9. Active control of laser wavefronts in atom interferometers, Phys. Rev. Applied 7, 034016 (2017).