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Related papers: A compact high-flux cold atom beam source

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We report a two-color magneto-optical trap (MOT) for ytterbium atoms operating at a low magnetic field gradient down to 2 G/cm where a conventional MOT using the singlet transition (6s^2 1S0 -> 6s6p 1P1) is unable to trap atoms. By…

Atomic Physics · Physics 2016-08-07 Akio Kawasaki , Boris Braverman , QinQin Yu , Vladan Vuletić

We experimentally and theoretically study the continuous accumulation of cold atoms from a magneto-optical trap (MOT) into a finite depth trap, consisting in a magnetic quadrupole trap dressed by a radiofrequency (RF) field. Chromium atoms…

Bose-Einstein condensates (BECs) have been proposed for many applications in atom interferometry, as their coherence over long evolution times promises unprecedented sensitivity. To date, BECs can be efficiently created in devices using…

We employ laser cooling to intensify and cool an atomic beam of metastable Ne(3s) atoms. Using several collimators, a slower and a compressor we achieve a ^{20}Ne^* flux of 6 10^{10} atoms/s in an 0.7 mm diameter beam traveling at 100 m/s,…

3D multi-object tracking (MOT) is essential to applications such as autonomous driving. Recent work focuses on developing accurate systems giving less attention to computational cost and system complexity. In contrast, this work proposes a…

Computer Vision and Pattern Recognition · Computer Science 2020-08-19 Xinshuo Weng , Jianren Wang , David Held , Kris Kitani

We report on the realization of a magneto-optical trap (MOT) for europium atoms using a narrow-line cooling transition with a natural linewidth of 97 kHz. Our starting point is continuous capturing and cooling of optically pumped metastable…

Quantum Gases · Physics 2021-06-02 Yuki Miyazawa , Ryotaro Inoue , Hiroki Matsui , Kenta Takanashi , Mikio Kozuma

We describe experiments demonstrating efficient transfer of molecules from a magneto-optical trap (MOT) into a conservative magnetic quadrupole trap. Our scheme begins with a blue-detuned optical molasses to cool SrF molecules to $\sim\!50$…

Atomic Physics · Physics 2018-07-11 D. J. McCarron , M. H. Steinecker , Y. Zhu , D. DeMille

We present an apparatus for the study of an ultracold gaseous atomic mixture of 133Cs and 87Rb. The mixture is prepared using a double magneto-optical trap (MOT) system in which a two-species pyramid MOT acts as a source of cold atoms for a…

Other Condensed Matter · Physics 2009-11-13 M. L. Harris , P. Tierney , S. L. Cornish

We propose the novel combination of a laser guide and magnetic lens to transport a cold atomic cloud. We have modelled the loading and guiding of a launched cloud of cold atoms with the optical dipole force. We discuss the optimum strategy…

We report on a novel Magneto-Optical Trap (MOT) geometry involving the retroreflection of one of the six MOT beams in order to create an atom cloud close to the surface of a prism which does not have optical access along one axis. A MOT of…

Atomic Physics · Physics 2016-03-11 Jonathan Trossman , Zigeng Liu , Ming-Feng Tu , Selim Shariar , Brian Odom , J. B. Ketterson

Most end-to-end Multi-Object Tracking (MOT) methods face the problems of low accuracy and poor generalization ability. Although traditional filter-based methods can achieve better results, they are difficult to be endowed with optimal…

Computer Vision and Pattern Recognition · Computer Science 2021-03-08 Guangyao Zhai , Xin Kong , Jinhao Cui , Yong Liu , Zhen Yang

We report the measurement of collision rate coefficient for collisions between ultracold Cs atoms and low energy Cs+ ions. The experiments are performed in a hybrid trap consisting of a magneto-optical trap (MOT) for Cs atoms and a Paul…

Atomic Physics · Physics 2020-08-20 Sourav Dutta , S. A. Rangwala

We demonstrate launching of laser-cooled Yb atoms in a continuous atomic beam. The continuous cold beam has significant advantages over the more-common pulsed fountain, which was also demonstrated by us recently. The cold beam is formed in…

Atomic Physics · Physics 2013-06-19 K. D. Rathod , Alok K. Singh , Vasant Natarajan

We report optical trapping of laser-cooled molecules at sufficient density to observe molecule-molecule collisions for the first time in a bulk gas. SrF molecules from a red-detuned magneto-optical trap (MOT) are compressed and cooled in a…

Atomic Physics · Physics 2024-05-09 Varun Jorapur , Thomas K. Langin , Qian Wang , Geoffrey Zheng , David DeMille

We demonstrate a new magneto-optical trap (MOT) configuration using a simple pair of crossed wires rotated at 45 deg and an appropriate bias field to generate a MOT of >10^8 atoms. The same pair of wires, with slightly adjusted control…

We demonstrate a dual magneto-optical trap of $^{109}$Ag and $^{39}$K. For silver, a decreasing-field Zeeman slower loads a MOT of $1.5{\times}10^8$ atoms at a temperature of 0.74(5) mK, with laser cooling occurring primarily on the $D_2$…

Optical scattering force is used to reduce the loading time of single atoms to a cavity mode. Releasing a cold atomic ensemble above the resonator, we apply a push beam along the direction of gravity, offering fast atomic transport with…

Quantum Physics · Physics 2024-03-22 Dowon Lee , Taegyu Ha , Donggeon Kim , Keumhyun Kim , Kyungwon An , Moonjoo Lee

Magneto-optical trap (MOT) at narrow (weak) transition offers lower temperature and hence is the key for production of high phase density atomic cloud and subsequently quantum degeneracy with high number of atoms for many elements. In this…

Atomic Physics · Physics 2025-11-04 Rajnandan Choudhury Das , Dangka Shylla , Arkapravo Bera , Kanhaiya Pandey

Calcium monofluoride (CaF) molecules are loaded into an optical dipole trap (ODT) and subsequently laser cooled within the trap. Starting with magneto-optical trapping, we sub-Doppler cool CaF and then load $150(30)$ CaF molecules into an…

3D multi-object tracking (MOT) is an essential component for many applications such as autonomous driving and assistive robotics. Recent work on 3D MOT focuses on developing accurate systems giving less attention to practical considerations…

Computer Vision and Pattern Recognition · Computer Science 2020-07-23 Xinshuo Weng , Jianren Wang , David Held , Kris Kitani