Since the first demonstration of laser cooling and trapping, cold and ultracold trapped atoms have played a vital role in realizing many modern advanced atomic physic experiments through a coherent control of matter-light interaction. Among various trapped cold atomic species, Strontium atoms has become one of the interesting candidates in realizing various experimental platforms from quantum sensing metrology to quantum simulation of condensed matter physic problems with ultracold fermionic and bosonic gases. In most of these applications a compact and high flux source of cold atoms is an important requirement. We design and build up a compact cold strontium-88 atomic source with a transversely loaded 2D-MOT and a bi-color hybrid slowing scheme, leading to an enhancement in the number of atoms prepared in the 3D blue MOT by a factor of 9. Also, due to the sensitivity of the strontium intercombination line transition to a few milligauss of magnetic field, we further implemented an active magnetic field control system with PID feedback. The performance of the magnetic field feedback is tested by recording the red MOT position. We show that the system is capable of suppressing the change in MOT position, for magnetic field jumps of the order of 10 mG typically experienced in the lab.
|Presenter name||Jianing Li|
|online poster URL||https://www.dropbox.com/sh/fskku2uwu4orpu3/AADPd_lCGg8fANPurYWSKS6Wa?dl=0|
|How will you attend ICAP-27?||I am planning on virtual registration for online attendance|