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We describe the application of displaced, or misaligned, beams in a mirror-based magneto-optical trap (MOT) to enable portable and miniaturized atom chip experiments, where optical access is limited to a single window. Two different…

Atomic Physics · Physics 2018-02-16 Ritayan Roy , Jo Rushton , Andrei Dragomir , Matthew Aldous , Matt Himsworth

Laser cooling and trapping are central to modern atomic physics. The workhorse technique in cold-atom physics is the magneto-optical trap (MOT), which combines laser cooling with a restoring force from radiation pressure. For a variety of…

Atomic Physics · Physics 2014-10-20 J. F. Barry , D. J. McCarron , E. B. Norrgard , M. H. Steinecker , D. DeMille

Typical sources of ultracold atoms operate with a considerable delay between the delivery of ensembles due to sequential trapping and cooling schemes. Therefore, alternative schemes for the continuous generation of ultracold atoms are…

Quantum Physics · Physics 2015-11-23 J. Mahnke , I. Kruse , A. Hüper , S. Jöllenbeck , W. Ertmer , J. Arlt , C. Klempt

Magneto-optical traps (MOTs) based on the $626\;{\rm nm}$, $136\;{\rm kHz}$-wide intercombination line of Dy, which has an attractively low Doppler temperature of $3.3\;\mu{\rm K}$, have been implemented in a growing number of experiments…

Quantum Gases · Physics 2020-07-01 William Lunden , Li Du , Michael Cantara , Pierre Barral , Alan O. Jamison , Wolfgang Ketterle

We produce large numbers of low-energy ions by photoionization of laser-cooled atoms inside a surface-electrode-based Paul trap. The isotope-selective trap loading rate of $4\times10^{5}$ Yb$^{+}$ ions/s exceeds that attained by…

Atomic Physics · Physics 2009-11-13 Marko Cetina , Andrew Grier , Jonathan Campbell , Isaac Chuang , Vladan Vuletic

We demonstrate loading of a Li magneto-optical trap using light-induced atomic desorption. The magneto-optical trap confines up to approximately $4\times10^{4}$ $^{7}\text{Li}$ atoms with loading rates up to approximately $4\times10^{3}$…

Atomic Physics · Physics 2018-10-17 D. S. Barker , E. B. Norrgard , J. Scherschligt , J. A. Fedchak , S. Eckel

We trap cold, ground-state, argon atoms in a deep optical dipole trap produced by a build-up cavity. The atoms, which are a general source for the sympathetic cooling of molecules, are loaded in the trap by quenching them from a cloud of…

Atomic Physics · Physics 2014-11-05 P. D. Edmunds , P. F. Barker

We report on an efficient and compact high-flux Cs atom beam source based on a retro-reflected two-dimensional magneto-optical trap (2D MOT). We realize an effective pushing field component by tilting the 2D MOT collimators towards a…

Atomic Physics · Physics 2014-06-26 J. R. Kellogg , D. Schlippert , J. M. Kohel , R. J. Thompson , D. C. Aveline , N. Yu

We experimentally demonstrate cooling of trapped ions by collisions with co-trapped, higher mass neutral atoms. It is shown that the lighter $^{39}$K$^{+}$ ions, created by ionizing $^{39}$K atoms in a magneto-optical trap (MOT), when…

Atomic Physics · Physics 2017-03-23 Sourav Dutta , Rahul Sawant , S. A. Rangwala

We have integrated magneto-optical traps (MOTs) into an atom chip by etching pyramids into a silicon wafer. These have been used to trap atoms on the chip, directly from a room temperature vapor of rubidium. This new atom trapping method…

Atomic Physics · Physics 2011-01-06 S. Pollock , J. P. Cotter , A. Laliotis , E. A. Hinds

We report studies of photon-stimulated desorption (PSD), also known as light-induced atomic desorption(LIAD), of sodium atoms from a vacuum cell glass surface used for loading a magneto-optical trap (MOT). Fluorescence detection was used to…

Atomic Physics · Physics 2013-06-18 Gustavo Telles , Tetsuya Ishikawa , Matthew Gibbs , Chandra Raman

We present the design, implementation and detailed experimental characterization of two-dimensional Magneto-optical traps (MOT) of bosonic $^{23}$Na and $^{39}$K atoms for loading the cold atomic mixture in a dual-species 3DMOT with a large…

We have constructed and modeled a simple and efficient source of slow atoms. From a background vapour loaded magneto-optical trap, a thin laser beam extracts a continuous jet of cold rubidium atoms. In this setup, the extraction column that…

Atomic Physics · Physics 2009-11-07 W. Wohlleben , F. Chevy , K. Madison , J. Dalibard

Direct laser cooling and trapping of molecules to temperature below Doppler limit and density exceeding $10^8$ are challenging due to the sub-Doppler heating effects of molecular magneto-optical trap (MOT). In our previous paper [1], we…

Atomic Physics · Physics 2023-05-29 S. Xu , R. Li , Y. Zhai , Y. Xia , M. Siercke , S. Ospelkaus

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

We report on a scheme for loading dysprosium atoms into a narrow-line three-dimensional magneto-optical trap (3D MOT). Our innovative approach replaces the conventional Zeeman slower with a 2D MOT operating on the broad 421-nm line to…

A three-dimensional magneto-optical trap (MOT), as an efficient method of producing cold atoms from room-temperature atomic vapor, has been widely used to develop atomic sensors. Various compact MOTs using a single laser beam have been…

Atomic Physics · Physics 2025-10-27 Timothy H. Nguyen , Mariam Mchedlidze , Guanghui Su , Balthazar Loglia , Hanbo Yang , Xuejian Wu

The design and performance of a cryogenic buffer gas beam (CBGB) source with a load-lock system is presented. The ACME III electron electric dipole moment (eEDM) search experiment uses this source to produce a beam of cold, slow thorium…

We present the properties and advantages of a new magneto-optical trap (MOT) where blue-detuned light drives `type-II' transitions that have dark ground states. Using $^{87}$Rb, we reach a radiation-pressure-limited density exceeding…

Atomic Physics · Physics 2018-02-28 K. N. Jarvis , J. A. Devlin , T. E. Wall , B. E. Sauer , M. R. Tarbutt

We demonstrate a simple and compact approach to laser cool and trap atoms based on laser-induced thermal ablation (LITA) of a pure solid granule. A rapid thermalisation of the granule leads to a fast recovery of the ultra-high vacuum…

Atomic Physics · Physics 2022-01-19 Chung Chuan Hsu , Rémy Larue , Chang Chi Kwong , David Wilkowski