L'url de cette page a bien été copiée dans votre presse-papier!
Reference
20200025_0030
Arnaud Landragin, médaille de l'Innovation 2020 du CNRS
Arnaud Landragin is awarded the CNRS 2020 Innovation Medal. CNRS research professor and director of the SYRTE (Systèmes de référence temps-espace) laboratory (CNRS/Sorbonne Université/Observatoire de Paris-PSL), he uses the quantum principle of wave-particle duality to split an atom into two waves with a laser. Gravity modifies the propagation of these two waves, and can be measured after their recombination. The scientist uses this to design cold-atom absolute gravimeters, which are sold by Muquans, the company he co-founded. He also simplified these systems with a pyramid reflector, a series of mirrors that allow just two lasers to perform the tasks of six. These devices have applications in the measurement of acceleration and gravitational fields, and, through their impact on local gravity, the probing of fluids and materials present underground.
The use of media visible on the CNRS Images Platform can be granted on request. Any reproduction or representation is forbidden without prior authorization from CNRS Images (except for resources under Creative Commons license).
No modification of an image may be made without the prior consent of CNRS Images.
No use of an image for advertising purposes or distribution to a third party may be made without the prior agreement of CNRS Images.
Our work is guided by the way scientists question the world around them and we translate their research into images to help people to understand the world better and to awaken their curiosity and wonderment.
