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A TWIST for ultracold, polar molecules

Jan Kleinert, Christopher Haimberger, Patrick Zabawa +1 more

We present a Thin WIre electroStatic Trap (TWIST) for ultracold, polar NaCs molecules formed via photoassociation from a mixed species magneto optical trap (MOT). The TWIST is superimposed onto the atom clouds, enabling a continous accumulation of molecules.

Frontiers in OpticsJan 1, 20070 citations

Trapping of Ultracold Polar Molecules with a Thin-Wire Electrostatic Trap

Jan Kleinert, Christopher Haimberger, Patrick Zabawa +1 more

We describe the realization of a dc electric-field trap for ultracold polar molecules, the thin-wire electrostatic trap (TWIST). The thin wires that form the electrodes of the TWIST allow us to superimpose the trap onto a magneto-optical trap (MOT). In our experiment, ultracold polar NaCs molecules in their electronic ground state are created in the MOT via photoassociation, achieving a continuous accumulation in the TWIST of molecules in low-field seeking states. Initial measurements show that the TWIST trap lifetime is limited only by the background pressure in the chamber.We describe the realization of a dc electric-field trap for ultracold polar molecules, the thin-wire electrostatic trap (TWIST). The thin wires that form the electrodes of the TWIST allow us to superimpose the trap onto a magneto-optical trap (MOT). In our experiment, ultracold polar NaCs molecules in their electronic ground state are created in the MOT via photoassociation, achieving a continuous accumulation in the TWIST of molecules in low-field seeking states. Initial measurements show that the TWIST trap lifetime is limited only by the background pressure in the chamber.

arXiv:0707.2015Physical Review LettersOct 4, 200747 citations

Manufacturing a thin wire electrostatic trap for ultracold polar molecules

Jan Kleinert, Christopher Haimberger, Patrick Zabawa +1 more

We present a detailed description on how to build a thin wire electrostatic trap (TWIST) for ultracold polar molecules. It is the first design of an electrostatic trap that can be superimposed directly onto a magneto-optical trap (MOT). We can thus continuously produce ultracold polar molecules via photoassociation from a two species MOT and instantaneously trap them in the TWIST without the need for complex transfer schemes. Despite the spatial overlap of the TWIST and the MOT, the two traps can be operated and optimized completely independently due to the complementary nature of the utilized trapping mechanisms.We present a detailed description on how to build a thin wire electrostatic trap (TWIST) for ultracold polar molecules. It is the first design of an electrostatic trap that can be superimposed directly onto a magneto-optical trap (MOT). We can thus continuously produce ultracold polar molecules via photoassociation from a two species MOT and instantaneously trap them in the TWIST without the need for complex transfer schemes. Despite the spatial overlap of the TWIST and the MOT, the two traps can be operated and optimized completely independently due to the complementary nature of the utilized trapping mechanisms.

arXiv:0707.2359Review of Scientific InstrumentsNov 1, 20078 citations

Collision Studies between Ultracold NaCs Molecules and Composite Atoms

Amy Wakim, Patrick Zabawa, Christopher Haimberger +2 more

Deeply bound ultracold polar NaCs molecules are electrostatically trapped and spatially overlapped with each magneto-optical trap to induce atom-molecule interactions. The resulting atom-molecule collision studies are presented.

Frontiers in OpticsJan 1, 20080 citations

Photoassociation of ultracold NaCs via (4) Ω = 1 yields deeply-bound, highly polar X 1 Σ + states

Amy Wakim, Patrick Zabawa, N. P. Bigelow

APSMay 1, 20110 citations

Towards ultracold chemistry; manipulation of polar molecules with electric fields

Jochen Küpper, Hendrick L. Bethlem, Floris M. H. Crompvoets +5 more

Deceleration and trapping of polar molecules using time-varying electric fields is described. Decelerated ND3 and OH molecules are trapped in an electrostatic trap, slow beams of ammonia are injected in a storage ring and have also been used for testing micro-structured optical elements and for high-resolution spectroscopy. Alternate gradient deceleration and AC electric trapping of ground-state molecules is discussed.

Conference on Lasers and Electro-OpticsJan 1, 20050 citations

Dynamics of Ultracold Polar Molecules in a Thin Wire Electrostatic Trap (TWIST)

Abstract

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Dynamics of Ultracold Polar Molecules in a Thin Wire Electrostatic Trap (TWIST)

Abstract

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