Continuous guided beams of slow and internally cold polar molecules

Christian Sommer, Laurens D. Van Buuren, Michael Motsch, Sebastian Pohle, Josef Bayerl, Pepijn W.H. Pinkse*, Gerhard Rempe

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

40 Citations (Scopus)


We describe the combination of buffer-gas cooling with electrostatic velocity filtering to produce a high-flux continuous guided beam of internally cold and slow polar molecules. In a previous paper (L.D. van Buuren et al., Phys. Rev. Lett., 2009, 102, 033001) we presented results on density and state purity for guided beams of ammonia and formaldehyde using an optimized set-up. Here we describe in more detail the technical aspects of the cryogenic source, its operation, and the optimization experiments that we performed to obtain the best performance. The versatility of the source is demonstrated by the production of guided beams of different molecular species.

Original languageEnglish
Pages (from-to)203-220
Number of pages18
JournalFaraday discussions
Publication statusPublished - 25 Sep 2009
Externally publishedYes


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