A high resolution time-of-flight mass spectrometer for the detection of\n ultracold molecules

2005/04/12 by Stephan Kraft, Jochen Mikosch, Kraft, Stephan D. +13
Physics and Astronomy · #Advanced Frequency and Time Standards #Atomic Physics (physics.atom-ph) #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences

paper · pdf · doi:10.48550/arxiv.physics/0504079

openalex publication_date 2005/04/12 · openalex created_date 2023/02/18 · openalex updated_date 2026/07/28

Abstract

We have realized a high-resolution time-of-flight mass spectrometer combined\nwith a magneto-optical trap. The spectrometer enables excellent optical access\nto the trapped atomic cloud using specifically devised acceleration and\ndeflection electrodes. The ions are extracted along a laser beam axis and\ndeflected onto an off axis detector. The setup is applied to detect atoms and\nmolecules photoassociated from ultracold atoms. The detection is based on\nresonance-enhanced multi-photon ionization. Mass resolution up to m/Delta m_rms\n= 1000 at the mass of 133Cs is achieved. The performance of this spectrometer\nis demonstrated in the detection of photoassociated ultracold 7Li133Cs\nmolecules near a large signal of 133Cs ions.\n

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