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Ultra-cold polar molecules in an optical trap

Eric Hudson, Nathan Gilfoy, Stephan Falke +1 more

Bulletin of the American Physical SocietyMay 29, 20080 citations

A TWIST for ultracold, polar molecules

Jan Kleinert, Christopher Haimberger, Patrick Zabawa +1 more

We present a Thin WIre electroStatic Trap (TWIST) for ultracold, polar NaCs molecules formed via photoassociation from a mixed species magneto optical trap (MOT). The TWIST is superimposed onto the atom clouds, enabling a continous accumulation of molecules.

Frontiers in OpticsJan 1, 20070 citations

Experimental advances toward a compact dual-species laser cooling apparatus

Keith Ladouceur

This thesis describes the advances made towards a dual-species magneto-optical trap (MOT) of Li and Rb for use in photoassociation spectroscopy, Feshbach resonance studies, and, as long-term aspirations, the formation of ultracold heteronuclear polar molecules. The initial discussion will focus on a brief theoretical overview of laser cooling and trapping and the production of ultracold molecules from a cold atom source. Subsequently, details of the experimental system, including those pertaining to the required laser light, the vacuum chamber, and the computer control system will be presented. Finally, preliminary optimization and characterization measurements showing the performance of a single species Li MOT are introduced. These measurements demonstrated the loading of over 8 x 107 Li atoms directly into a MOT without the need for a Zeeman slower.This thesis describes the advances made towards a dual-species magneto-optical trap (MOT) of Li and Rb for use in photoassociation spectroscopy, Feshbach resonance studies, and, as long-term aspirations, the formation of ultracold heteronuclear polar molecules. The initial discussion will focus on a brief theoretical overview of laser cooling and trapping and the production of ultracold molecules from a cold atom source. Subsequently, details of the experimental system, including those pertaining to the required laser light, the vacuum chamber, and the computer control system will be presented. Finally, preliminary optimization and characterization measurements showing the performance of a single species Li MOT are introduced. These measurements demonstrated the loading of over 8 x 107 Li atoms directly into a MOT without the need for a Zeeman slower.

Jan 1, 20081 citation

Toward a 2-D magneto-optical trap for polar molecules

Matthew T. Hummon, Benjamin Stuhl, Mark Yeo +2 more

Bulletin of the American Physical SocietyJun 6, 20120 citations

Photoassociation of multiple cold molecules in a dipole trap

Li, Li, Yi-Jia Liu, Xiaolong Zhou +4 more

The generation of cold molecules is a core topic in the field of cold atoms and molecules, which has advanced relevant research like ultracold chemistry, quantum computation, and quantum metrology. With high atomic phase space density, optical dipole trap has been widely performed to prepare and trap cold molecules, and can also be further developed for multiple cold molecule formation and dynamics study. In this work, Rb2 molecules are photoassociated in the magneto-optical trap to obtain precise rovibrational spectroscopy, which provides accurate numerical references for multiple photoassociations. By achieving the harsh requirements of photoassociation in the optical dipole trap, the cold molecule photoassociation process is well explored, and different rovibrational cold molecules are formed in the optical dipole trap for the first time. This method can be universally extended to simultaneously photoassociate various molecules with different internal states or atomic species in just one optical dipole trap, and then advance generous cold molecule research such as cold molecule collision dynamics.The generation of cold molecules is a core topic in the field of cold atoms and molecules, which has advanced relevant research like ultracold chemistry, quantum computation, and quantum metrology. With high atomic phase space density, optical dipole trap has been widely performed to prepare and trap cold molecules, and can also be further developed for multiple cold molecule formation and dynamics study. In this work, Rb2 molecules are photoassociated in the magneto-optical trap to obtain precise rovibrational spectroscopy, which provides accurate numerical references for multiple photoassociations. By achieving the harsh requirements of photoassociation in the optical dipole trap, the cold molecule photoassociation process is well explored, and different rovibrational cold molecules are formed in the optical dipole trap for the first time. This method can be universally extended to simultaneously photoassociate various molecules with different internal states or atomic species in just one optical dipole trap, and then advance generous cold molecule research such as cold molecule collision dynamics.

arXiv:2402.15986Feb 25, 20240 citations

Progress Towards a Magneto-Optical Trap of Polyatomic Molecules

Nathaniel B. Vilas, Louis Baum, Christian Hallas +2 more

Bulletin of the American Physical SocietyMay 30, 20190 citations

Creating ultra-cold polar molecules by photoassociation in a mixed species magneto-optical trap

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