Orateur
Prof.
Florian Schreck
(Institute of Physics, University of Amsterdam)
Description
I'll report on two research lines centered around ultracold strontium.
The first research line has the goal to produce a quantum gas of RbSr ground-state molecules. We have created a $^{84}$Sr-$^{87}$Rb Mott insulator and investigated STIRAP molecule association on the $^1$S$_0$-$^3$P$_1$ intercombination line. We found only very weak transitions between free atoms and optically excited molecules, hindering us to coherently create molecules. Using mass-scaling, our spectroscopy data points to a much more promising STIRAP molecule association path in $^{87}$Sr-$^{87}$Rb mixtures. Furthermore, we have developed a STIRAP light-shift compensation method that has allowed us to coherently create Sr$_2$ molecules with more than 80$\,\%$ efficiency, up from 30$\,\%$ reached previously.
The second research line has the goal to create a perpetual atom laser. I'll describe our approach and show first ultracold atom signals from a new machine dedicated to this research line.
Auteur principal
Prof.
Florian Schreck
(Institute of Physics, University of Amsterdam)
Co-auteurs
M.
Alessio Ciamei
(Institute of Physics, University of Amsterdam)
M.
Alex Bayerle
(Institute of Physics, University of Amsterdam)
Dr
Benjamin Pasquiou
(Institute of Physics, University of Amsterdam)
M.
Chun-Chia Chen
(Institute of Physics, University of Amsterdam)
M.
Denis Kurlov
(Institute of Physics, University of Amsterdam)
Dr
Georgios Siviloglou
(Institute of Physics, University of Amsterdam)
Mme
Namrata Dutta-Mazumdar
(Institute of Physics, University of Amsterdam)
M.
Oleksiy Onishchenko
(Institute of Physics, University of Amsterdam)
M.
Sergey Pyatchenkov
(Institute of Physics, University of Amsterdam)
M.
Shayne Bennetts
(Institute of Physics, University of Amsterdam)
M.
Tim van Leent
(Institute of Physics, University of Amsterdam)
M.
Vincent Barbé
(Institute of Physics, University of Amsterdam)
