Deceleration of a Supersonic Beam of SrF Molecules to 120ms-1

A beam of SrF molecules is decelerated from 290 to 120ms-1. Following supersonic expansion, the molecules in the X2Σ (ν=0, N=1) low-field-seeking state are trapped by the moving potential wells of a traveling-wave Stark decelerator. With a deceleration strength of 9.6kms-2 the removal of 85% of the...

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Bibliographic Details
Published inChemphyschem Vol. 17; no. 22; p. 3709
Main Authors Mathavan, Sreekanth C, Zapara, Artem, Esajas, Quinten, Hoekstra, Steven
Format Journal Article
LanguageEnglish
Published Weinheim Wiley Subscription Services, Inc 18.11.2016
Subjects
Kinetics
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Summary:A beam of SrF molecules is decelerated from 290 to 120ms-1. Following supersonic expansion, the molecules in the X2Σ (ν=0, N=1) low-field-seeking state are trapped by the moving potential wells of a traveling-wave Stark decelerator. With a deceleration strength of 9.6kms-2 the removal of 85% of the initial kinetic energy in a 4m-long modular decelerator is demonstrated. The absolute amount of kinetic energy removed is a factor of 1.5 higher compared to previous Stark-deceleration experiments. The demonstrated decelerator provides a novel tool for the creation of highly collimated and slow beams of heavy diatomic molecules, which serve as a good starting point for high-precision tests of fundamental physics.
ISSN:1439-4235
1439-7641
DOI:10.1002/cphc.201600813