中文
相关论文

相关论文: Fast Non-destructive temperature measurement of tw…

200 篇论文

We describe a dynamic magneto-optical trap (MOT) suitable for the use with vacuum systems in which optical access is limited to a single window. This technique facilitates the long-standing desire of producing integrated atom chips, many of…

原子物理 · 物理学 2016-11-28 Jo Rushton , Ritayan Roy , James Bateman , Matt Himsworth

We study several new magneto-optical trapping configurations in $^{87}$Rb. These unconventional MOTs all use type-II transitions, where the angular momentum of the ground state is greater than or equal to that of the excited state, and they…

原子物理 · 物理学 2018-10-31 K. N. Jarvis , B. E. Sauer , M. R. Tarbutt

Dysprosium (Dy) is the most magnetic element on the periodic table, making it excellent for studying dipolar atom-atom interactions. We report on a simple Dy MOT that captures atoms directly from the thermal beam using a single diode-laser…

We introduce a new technique to probe the properties of an interacting cold atomic gas that can be viewed as a dynamical compressibility measurement. We apply this technique to the study of the superfluid to Mott insulator quantum phase…

其他凝聚态物理 · 物理学 2009-11-13 H. Lignier , A. Zenesini , D. Ciampini , O. Morsch , E. Arimondo , S. Montangero , G. Pupillo , R. Fazio

We present our technique to create a magneto-optical trap for dysprosium atoms using the narrow-line cooling transition at 626$\,$nm to achieve suitable conditions for direct loading into an optical dipole trap. The magneto-optical trap is…

量子气体 · 物理学 2016-11-11 T. Maier , H. Kadau , M. Schmitt , A. Griesmaier , T. Pfau

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 $\sim\!50$…

原子物理 · 物理学 2018-07-11 D. J. McCarron , M. H. Steinecker , Y. Zhu , D. DeMille

We utilize the optical transitions of Yb$^{2+}$ excited by an ultraviolet optical parametric amplifier to probe electron trap liberation in MgF$_{2}$ via the observation of a photoluminescence enhancement effect induced by a subsequent…

材料科学 · 物理学 2012-01-25 P. S. Senanayake , J. P. R. Wells , M. F. Reid , G. Berden , A. Meijerink , R. J. Reeves

Current dual-frequency magneto-optical traps for ultracold molecules are plagued by sub-Doppler heating effects, making them vastly inferior to standard atomic MOTs. Here we demonstrate theoretically that the sub-Doppler effects in such a…

原子物理 · 物理学 2023-04-06 S. Xu , P. Kaebert , M. Stepanova , T. Poll , M. Siercke , S. Ospelkaus

We report the laser cooling and trapping of neutral potassium on an open transition. Fermionic 40K is captured using a magneto-optical trap (MOT) on the closed 4S-4P transition at 767 nm and then transferred, with unit efficiency, to a MOT…

量子气体 · 物理学 2012-01-11 D. C. McKay , D. Jervis , D. J. Fine , J. W. Simpson-Porco , G. J. A. Edge , J. H. Thywissen

We demonstrate the measurement and manipulation of the temperature of cold CO molecules in a microchip environment. Through the use of time-resolved spatial imaging, we are able to observe the phase-space distribution of the molecules, and…

We unveil the relationship existing between the temperature of an atomic ensemble of three-level atoms in a \Lambda-configuration, and the width of the emission cone of Stokes photons that are spontaneously emitted when atoms are excited by…

量子物理 · 物理学 2012-03-09 R. de J. León-Montiel , Juan P. Torres

We report on the realization of a transversely loaded two-dimensional magneto-optical trap serving as a source for cold strontium atoms. We analyze the dependence of the source's properties on various parameters, in particular the intensity…

This paper presents detailed characteristics of an ultra-cold bright metastable neon atomic beam which we have been using for atom-interferometric applications. The basis of the device is an atomic beam released from a magneto-optical trap…

原子物理 · 物理学 2015-05-08 Fujio Shimizu

In red-detuned magneto-optical traps (MOTs) of molecules, sub-Doppler heating competes with Doppler cooling, resulting in high temperature and low density. A solution is offered by the blue-detuned MOT where sub-Doppler cooling dominates…

原子物理 · 物理学 2026-01-30 Qinshu Lyu , M. R. Tarbutt

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…

原子物理 · 物理学 2013-08-05 Dipankar Nath , R Kollengode Easwaran , G. Rajalakshmi , C. S. Unnikrishnan

We propose a method for measuring the temperature of fermionic atoms in an optical lattice potential from the intensity of the scattered light in the far-field diffraction pattern. We consider a single-component gas in a tightly-confined…

量子气体 · 物理学 2009-10-24 J. Ruostekoski , C. J. Foot , A. B. Deb

We report our experimental measurements and theoretical analysis of the position response function of a cloud of cold atoms residing in the viscous medium of an optical molasses and confined by a magneto-optical trap (MOT). We measure the…

Ultra-sensitive measurement of the magneto-optical rotation, due to interaction of linearly-polarized light passing through room-temperature Rb 85 atoms, in response to change in longitudinal magnetic field (\delta B_z ) is demonstrated…

仪器与探测器 · 物理学 2019-04-04 T. J. Vineeth Francis , Rashmi Ranjan Suna , P. K. Madhu , Nirmal K. Viswanathan , G. Rajalakshmi

We present the design and operation of an ytterbium ion trap experiment with a setup offering versatile optical access and 90 electrical inter-connects that can host advanced surface and multi-layer ion trap chips mounted on chip carriers.…

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…

原子物理 · 物理学 2020-10-14 Cainan S. Nichols , Leo M. Nofs , Michael A. Viray , Lu Ma , Eric Paradis , Georg Raithel