物理学院学术报告（第28期）

报告题目：Towards a continuous atom laser

报告专家：Junyu He    University of Amsterdam

报告时间：2024年05月13日（周一）10:30

报告地点：理六栋302        邀请人：颜辉

报告内容：

A continuous atom laser would be a promising source for quantum sensing, providing a high-flux, low-divergence beam while avoiding measurement dead time. We plan to outcouple such a beam from a Bose-Einstein condensate that we can continuously sustain. Our approach sends a Sr beam from an oven through a sequence of spatially separated laser cooling stages till the atoms accumulate in a protected area where they condense. Our next steps will be to enhance the purity of the BEC and to outcouple a continuous atom laser beam using a three-photon transfer to an untrapped state.

专家简介：

I did my PhD in Dajun Wang’s group at The Chinese University of Hong Kong. My research focuses on the ultracold molecules NaRb, like exploring the dipolar interaction by measuring the collisional loss between molecules, generating molecules in a 3D optical lattice, and studying the photo-induced loss of polar molecules. After that, I joined Florian Schreck’s group at the University of Amsterdam as a postdoc. Our project aims to build the first continuous atom laser in the world, which can be used for precision measurement.