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Title: Slow ammonia molecules in an electrostatic quadrupole guide
Authors: Junglen, T.
Rieger, T.
Rangwala, S.A.
Pinkse, P.W.H.
Rempe, G.
Keywords: Zeeman and Stark effects
Atomic and molecular beam sources and techniques
Issue Date: Nov-2004
Publisher: EDP Sciences/Springe
Citation: European Physical Journal D, 2004, Vol.31, p365–373
Abstract: An electrostatic quadrupole is used to filter slow dipolar ND3 molecules from an effusive source and to guide them into ultrahigh vacuum. The molecules in the electrostatic quadrupole experience a Stark interaction which allows filtering of small velocities in the linear and bent sections of the quadrupole. With this technique we demonstrate a flux of ≈ 1010/s with a longitudinal temperature of a few K. The technique and the set-up are discussed in detail, and the guided gas as well as the output beam are characterized. Improvements in the set-up are highlighted, as for instance cooling of the effusive source to below 150 K.
Description: Restricted Access. An open-access version is available at (one of the alternative locations)
ISSN: 1434-6079
Alternative Location:
Copyright: 2004 EDP Sciences/Springer
Appears in Collections:Research Papers (LAMP)

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