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This article is designed as a step-by-step guide to optically pumped magnetometers based on alkali atomic vapor cells. We begin with a general introduction to atomic magneto-optical response, as well as expected magnetometer performance…

Atomic Physics · Physics 2023-03-01 Anne Fabricant , Irina Novikova , Georg Bison

The ``optical bars''/``optical lever'' topologies of gravitational-wave antennae allow to obtain sensitivity better that the Standard Quantum Limit while keeping the optical pumping energy in the antenna relatively low. Element of the…

General Relativity and Quantum Cosmology · Physics 2008-11-26 F. Ya. Khalili

As a heavy molecule, barium monofluoride (BaF) presents itself as a promising candidate for measuring permanent electric dipole moment. The precision of such measurements can be significantly enhanced by utilizing a cold molecular sample.…

Atomic Physics · Physics 2024-10-29 Zixuan Zeng , Shuhua Deng , Shoukang Yang , Bo Yan

Optical and acoustical trapping has been established as a tool for holding and moving microscopic particles suspended in a liquid in a contact-free and non-invasive manner. Opposed to standard microscopic imaging where the probe is fixated,…

Numerical Analysis · Mathematics 2025-10-27 Peter Elbau , Monika Ritsch-Marte , Otmar Scherzer , Denise Schmutz

We present a low Size, Weight and Power (SWaP), low-complexity, ytterbium magneto-optical trap (MOT). We demonstrate trapping of $1.4 \times 10^6$ $^{171}$Yb atoms on the $|{^1S_0}, F = 1/2\rangle \leftrightarrow |{^1P_1}, F' = 3/2\rangle$…

Optically pumped magnetometers (OPMs) based on alkali-atom vapors are ultra-sensitive devices for dc and low-frequency ac magnetic measurements. Here, in combination with fast-field-cycling hardware and high-resolution spectroscopic…

Chemical Physics · Physics 2021-07-21 Sven Bodenstedt , Morgan Mitchell , Michael Tayler

In a typical experiment the nuclear \mu-capture rate is determined from measurements of the time constant of the muon decay exponential in a target. We propose a new approach for the evaluation of the \mu-capture rate, which is based on…

Nuclear Experiment · Physics 2013-03-05 S. N. Gninenko

We present the properties of a magneto-optical trap (MOT) of CaF molecules. We study the process of loading the MOT from a decelerated buffer-gas-cooled beam, and how best to slow this molecular beam in order to capture the most molecules.…

Atomic Physics · Physics 2017-12-06 H. J. Williams , S. Truppe , M. Hambach , L. Caldwell , N. J. Fitch , E. A. Hinds , B. E. Sauer , M. R. Tarbutt

One important factor which determines efficiency of loading cold atoms into an optical dipole trap from a magneto-optical trap is the distance between the trap centers. By studying this efficiency for various optical trap depths (2--110 mK)…

To identify the optimum conditions for the optical trapping of a droplet under microgravity, we theoretically analyzed the efficiency of trapping with counter laser beams. We found that the distance between the two foci is an important…

Dipolar atoms have unique properties, making them interesting for laser cooling and quantum simulations. But, due to relatively large orbital momentum in the ground state these atoms may have large dynamic tensor and vector polarizabilities…

Atomic Physics · Physics 2019-10-09 V. V. Tsyganok , D. A. Pershin , E. T. Davletov , V. A. Khlebnikov , A. V. Akimov

Optically pumped atomic magnetometers (OPAMs) offer high sensitivity at room temperature and are increasingly considered for portable magnetic sensing in geomagnetic-field environments. Here we report a handheld-scale, single-beam scalar…

Atomic Physics · Physics 2026-01-14 Heonsik Lee , Hyunbeen Lee , Minseok Choi , Yoontae Hwang , Deok-Young Lee

Ultracold atoms exquisitely controlled by lasers are the quantum foundation, particularly for sensing, timekeeping, and computing, of state-of-the-art quantum science and technology. However, the laboratory-scale infrastructure for such…

Quantum Gases · Physics 2024-10-10 G. Kestler , K. Ton , J. T. Barreiro

Magneto-optical trapping forces for molecules are far weaker than for alkali atoms because the photon scattering rate is reduced when there are multiple ground states, and because of optical pumping into dark states. The force is further…

Atomic Physics · Physics 2021-12-14 M. R. Tarbutt , T. C. Steimle

We demonstrate an optical system that can apply and accurately measure the torque exerted by the trapping beam on a rotating birefringent probe particle. This allows the viscosity and surface effects within liquid media to be measured…

We propose and experimentally demonstrate a novel scheme to magneto-optically trap neutral atoms in a ring shaped trap that can be used to transfer atoms into a circular magnetic trap with high density. This inturn enables to evaporatively…

Other Condensed Matter · Physics 2007-05-23 Makoto Morinaga

We have studied magneto-optical traps (MOTs) for efficient on-line trapping of radioactive atoms. After discussing a model of the trapping process in a vapor cell and its efficiency, we present the results of detailed experimental studies…

Atomic Physics · Physics 2014-11-18 S. N. Atutov , R. Calabrese , A. Facchini , G. Stancari , L. Tomassetti

We describe an approach to optically trapping small, chemically stable molecules at cryogenic temperatures by buffer-gas loading a deep optical dipole trap. The ~10 K trap depth will be produced by a tightly-focused, 1064-nm cavity capable…

Calcium monofluoride (CaF) is magnetically slowed and trapped using optical pumping. Starting from a collisionally cooled slow beam, CaF with an initial velocity of ~ 30 m/s is slowed via magnetic forces as it enters a 800 mK deep magnetic…

Atomic Physics · Physics 2014-03-26 Hsin-I Lu , Ivan Kozyryev , Boerge Hemmerling , Julia Piskorski , John M. Doyle

We realize the first magneto-optical trap of an atom in main group III of the Periodic Table. Our atom of choice (indium) does not have a transition out of its ground state suitable for laser cooling; therefore, laser cooling is performed…

Atomic Physics · Physics 2022-06-09 Xianquan Yu , Jinchao Mo , Tiangao Lu , Ting You Tan , Travis L. Nicholson
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