Continuous Loading of an Electrostatic Trap for Polar Molecules

Rieger, T. ; Junglen, T. ; Rangwala, S. A. ; Pinkse, P. W. H. ; Rempe, G. (2005) Continuous Loading of an Electrostatic Trap for Polar Molecules Physical Review Letters, 95 (17). ISSN 0031-9007

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Official URL: http://doi.org/10.1103/PhysRevLett.95.173002

Related URL: http://dx.doi.org/10.1103/PhysRevLett.95.173002

Abstract

A continuously operated electrostatic trap for polar molecules is demonstrated. The trap has a volume of ≈ 0.6     cm 3 and holds molecules with a positive Stark shift. With deuterated ammonia from a quadrupole velocity filter, a trap density of ≈ 10 8     cm − 3 is achieved with an average lifetime of 130 ms and a motional temperature of ≈ 300     mK . The trap offers good starting conditions for high-precision measurements, and can be used as a first stage in cooling schemes for molecules and as a “reaction vessel” in cold chemistry.

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