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Trapping of single ultracold atoms is an important tool for applications ranging from quantum computation and communication to sensing. However, most experimental setups, while very precise and versatile, can only be operated in specialized…

We describe rapid, random-access loading of a two-dimensional (2D) surface-electrode ion-trap array based on two crossed photo-ionization laser beams. With the use of a continuous flux of pre-cooled neutral atoms from a remotely-located…

原子物理 · 物理学 2016-11-03 C. D. Bruzewicz , R. McConnell , J. Chiaverini , J. M. Sage

We propose an optical dipole trap for cold neutral atoms based on the electric field produced from the evanescent fields in a hollow rectangular slot cut through an optical nanofibre. In particular, we discuss the trap performance in…

原子物理 · 物理学 2014-07-24 Mark Daly , Viet Giang Truong , Ciarán Phelan , Kieran Deasy , Síle Nic Chormaic

Optical pulling with tractor beams is so far highly dependent on (i) the property of embedding background or the particle itself , (ii) the number of the particles and/or (iii) the manual ramping of beam phase. A necessary theoretical…

Recently, we have experimentally demonstrated a continuous loading mechanism for an optical dipole trap from a guided atomic beam [1]. The observed evolution of the number of atoms and temperature in the trap are consequences of the unusual…

We study a means of creating multiparticle entanglement of neutral atoms using pairwise controlled dipole-dipole interactions in a three dimensional optical lattice. For tightly trapped atoms the dipolar interaction energy can be much…

量子物理 · 物理学 2009-10-31 G. K. Brennen , I. H. Deutsch , P. S. Jessen

Optical tweezers has emerged as a powerful tool in manipulating microscopic particles and in measuring weak forces of the order of a pico-Newton. As a result, it has found wide applications ranging from material science to biology.…

光学 · 物理学 2024-11-26 Md Arsalan Ashraf , Pramod Pullarkat

Active atomic clocks are predicted to provide far better short-term stability and robustness against thermal fluctuations than typical feedback-based optical atomic clocks. However, continuous laser operation using an ensemble of clock…

量子物理 · 物理学 2024-12-31 Anna Bychek , Laurin Ostermann , Helmut Ritsch

We describe a simple experimental technique which allows to store a single Rubidium 87 atom in an optical dipole trap. Due to light-induced two-body collisions during the loading stage of the trap the maximum number of captured atoms is…

量子物理 · 物理学 2009-11-11 Markus Weber , Juergen Volz , Karen Saucke , Christian Kurtsiefer , Harald Weinfurter

Laser engineered exciton-polariton networks could lead to dynamically configurable integrated optical circuitry and quantum devices. Combining cavity optomechanics with electrodynamics in laser configurable hybrid designs constitutes a…

光学 · 物理学 2021-02-17 P. Sesin , S. Anguiano , A. E. Bruchhausen , A. Lemaître , A. Fainstein

We have realised a 4-beam pyramidal magneto-optical trap ideally suited for future microfabrication. Three mirrors split and steer a single incoming beam into a tripod of reflected beams, allowing trapping in the four-beam overlap volume.…

原子物理 · 物理学 2010-04-15 Matthieu Vangeleyn , Paul F. Griffin , Erling Riis , Aidan S. Arnold

In a recent paper, we have proposed a novel laser cooling scheme for reducing collisional energy of a pair of atoms by using photoassociative transitions. In that paper, we considered two atoms in free space, that is we have not considered…

原子物理 · 物理学 2017-03-22 Somnath Naskar , Subrata Saha , Partha Goswami , Arpita pal , Bimalendu Deb

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…

量子物理 · 物理学 2015-05-18 Ch. Schneider , M. Enderlein , T. Huber , T. Schaetz

Using a two-dipole model of an optical near-field of Scanning Near-field Optical Microscope tip, i. e. taking into account contributions of magnetic and electric dipoles, we propose and analyze a new type of 3D optical nanotrap found for…

光学 · 物理学 2009-11-11 V. V. Klimov , S. K. Sekatskii , G. Dietler

We report on a new experimental platform for the measurement of absolute scattering cross-sections. The target atoms are trapped in an optical dipole trap and are exposed to an incident particle beam. The exponential decay of the atom…

原子物理 · 物理学 2010-11-04 P. Würtz , T. Gericke , A. Vogler , H. Ott

We propose an ion trap configuration such that individual traps can be stacked together in a three dimensional simple cubic arrangement. The isolated trap as well as the extended array of ion traps are characterized for different locations…

原子物理 · 物理学 2011-12-30 K. Ravi , Seunghyun Lee , Arijit Sharma , Tridib Ray , G. Werth , S. A. Rangwala

Arrays of individual atoms trapped in optical microtraps with micrometer-scale sizes have emerged as a fundamental, versatile, and powerful platform for quantum sciences and technologies. This platform enables the bottom-up engineering of…

量子气体 · 物理学 2024-01-10 Shangguo Zhu , Yun Long , Wei Gou , Mingbo Pu , Xiangang Luo

Here, we present our studies on intra-trap dynamics of an optical dipole trap (ODT) loaded from a Magneto-optical trap (MOT) of $^{87}$Rb atoms. A spatio-temporal Monte Carlo (MC) simulation approach has been employed in conjunction with…

原子物理 · 物理学 2025-05-09 Sankalp Shandilya , Gunjan Verma , Kavish Bhardwaj , S. P. Ram , V. B. Tiwari , S. R. Mishra

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…

原子物理 · 物理学 2025-10-27 Timothy H. Nguyen , Mariam Mchedlidze , Guanghui Su , Balthazar Loglia , Hanbo Yang , Xuejian Wu

We describe a new type of blue detuned optical lattice for atom trapping which is intrinsically two dimensional, while providing three-dimensional atom localization. The lattice is insensitive to optical phase fluctuations since it does not…

原子物理 · 物理学 2013-10-31 M. J. Piotrowicz , M. Lichtman , K. Maller , G. Li , S. Zhang , L. Isenhower , M. Saffman