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Related papers: Magneto optical trapping of Barium

200 papers

We present a magneto-optical trap (MOT) design based on millimeter ball lenses, contained within a metal cube of 0.75$^{\prime \prime}$ side length. We present evidence of trapping approximately $4.2\times 10^5$ of $^{85}$Rb atoms with a…

Atomic Physics · Physics 2020-10-14 Cainan S. Nichols , Leo M. Nofs , Michael A. Viray , Lu Ma , Eric Paradis , Georg Raithel

Ultracold atoms at temperatures close to the recoil limit have been achieved by extending Doppler cooling to forbidden transitions. A cloud of ^40Ca atoms has been cooled and trapped to a temperature as low as 6 \mu K by operating a…

Atomic Physics · Physics 2015-11-30 T. Binnewies , G. Wilpers , U. Sterr , F. Riehle , J. Helmcke , T. E. Mehlstäubler , E. M. Rasel , W. Ertmer

We propose an alternative method to laser cooling. Our approach utilizes the extreme brightness of a supersonic atomic beam, and the adiabatic atomic coilgun to slow atoms in the beam or to bring them to rest. We show how internal-state…

We have trapped cesium atoms over many minutes in the focus of a CO$_2$-laser beam employing an extremely simple laser system. Collisional properties of the unpolarized atoms in their electronic ground state are investigated. Inelastic…

Atomic Physics · Physics 2009-11-06 H. Engler , T. Weber , M. Mudrich , R. Grimm , M. Weidemueller

Metastable calcium atoms, produced in a magneto-optic trap (MOT) operating within the singlet system, are continuously loaded into a magnetic trap formed by the magnetic quadrupole field of the MOT. At MOT temperatures of 3 mK and 240 ms…

Atomic Physics · Physics 2009-11-07 Dirk P. Hansen , Janis R. Mohr , Andreas Hemmerich

Recently, laser cooling methods have been extended from atoms to molecules. The complex rotational and vibrational energy level structure of molecules makes laser cooling difficult, but these difficulties have been overcome and molecules…

Atomic Physics · Physics 2019-02-18 M. R. Tarbutt

We report on single Barium ions confined in a near-infrared optical dipole trap for up to three seconds in absence of any radio-frequency fields. Additionally, the lifetime in a visible optical dipole trap is increased by two orders of…

For several decades, ions have been trapped by radio frequency (RF) and neutral particles by optical fields. We implement the experimental proof-of-principle for trapping an ion in an optical dipole trap. While loading, initialization and…

Quantum Physics · Physics 2015-05-18 Ch. Schneider , M. Enderlein , T. Huber , T. Schaetz

We demonstrate a scheme for magneto-optically trapping strontium monofluoride (SrF) molecules at temperatures one order of magnitude lower and phase space densities three orders of magnitude higher than obtained previously with laser-cooled…

Atomic Physics · Physics 2016-02-17 E. B. Norrgard , D. J. McCarron , M. H. Steinecker , M. R. Tarbutt , D. DeMille

We report the rapid accelerated thermalisation of Potassium 39 K atoms loaded in a magnetic trap, in the presence of a single dipole trap beam. More than an order of magnitude reduction in the thermalisation time, to less than a second, is…

Atomic Physics · Physics 2013-08-05 Dipankar Nath , R Kollengode Easwaran , G. Rajalakshmi , C. S. Unnikrishnan

Compact, lightweight, and energy-efficient cold atom systems are crucial for advancing quantum technologies, yet their realization remains constrained by the bulky optical and magnetic components required in current atom trapping…

We present experimental results from a new scheme for magneto-optically trapping strontium monofluoride (SrF) molecules, which provides increased confinement compared to our original work. The improved trap employs a new approach to…

Atomic Physics · Physics 2015-06-23 D. J. McCarron , E. B. Norrgard , M. H. Steinecker , D. DeMille

We report the trapping of ultracold neutral $ \text{Rb}$ atoms and $ \text{Ba}^+ $ ions in a common optical potential in absence of any radiofrequency (RF) fields. We prepare $ \text{Ba}^+ $ at $ 370 ~ \mu K $ and demonstrate efficient…

Atomic Physics · Physics 2020-02-12 J. Schmidt , P. Weckesser , F. Thielemann , T. Schaetz , L. Karpa

Deep laser cooling of atoms, ions, and molecules facilitates the study of fundamental physics as well as applied research. In this work, we report on the narrow-line laser cooling of thulium atoms at the wavelength of $506.2\,\textrm{nm}$…

Magneto-optical traps are central to atomic and molecular quantum technologies and precision tests of fundamental physics, where both sensitivity and bandwidth scale strongly with atom number and loading rate. We demonstrate that employing…

We present a high-flux source of cold ytterbium atoms that is robust, lightweight and low-maintenance. Our apparatus delivers $10^9$ atoms/s into a 3D magneto-optical trap without requiring water-cooling or high current power supplies. We…

Atomic Physics · Physics 2021-02-25 E. Wodey , R. J. Rengelink , C. Meiners , E. M. Rasel , D. Schlippert

We describe an experimental apparatus capable of achieving a high loading rate of strontium atoms in a magneto-optical trap operating in a high vacuum environment. A key innovation of this setup is a two dimensional magneto-optical trap…

Atomic Physics · Physics 2015-11-05 T. Yang , K. Pandey , M. S. Pramod , F. Leroux , C. C. Kwong , E. Hajiyev , Z. Y. Chia , B. Fang , D. Wilkowski

Three-dimensional magnetic confinement of neutrons is reported. Neutrons are loaded into an Ioffe-type superconducting magnetic trap through inelastic scattering of cold neutrons with 4He. Scattered neutrons with sufficiently low energy and…

We have realized a scheme for continuous loading of a magnetic trap (MT). ^{52}Cr atoms are continuously captured and cooled in a magneto-optical trap (MOT). Optical pumping to a metastable state decouples atoms from the cooling light. Due…

Quantum Physics · Physics 2009-11-06 J. Stuhler , P. O. Schmidt , S. Hensler , J. Werner , J. Mlynek , T. Pfau

Single Cesium atoms are cooled and trapped inside a small optical cavity by way of a novel far-off-resonance dipole-force trap (FORT), with observed lifetimes of 2 to 3 seconds. Trapped atoms are observed continuously via transmission of a…

Quantum Physics · Physics 2009-11-07 J. McKeever , J. R. Buck , A. D. Boozer , A. Kuzmich , H. -C. Naegerl , D. M. Stamper-Kurn , H. J. Kimble