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- Title
A thin wire ion trap to study ion-atom collisions built within a Fabry-Perot cavity.
- Authors
Ray, Tridib; Jyothi, S.; Ram, N.; Rangwala, S.
- Abstract
We report on the implementation of a thin wire Paul trap with tungsten wire electrodes for trapping ions. The ion trap geometry, though compact, allows large optical access enabling a moderate finesse Fabry-Perot cavity to be built along the ion trap axis. The design allows a vapor-loaded magneto-optical trap of alkali atoms to be overlapped with trapped atomic or molecular ions. The construction and design of the trap are discussed, and its operating parameters are determined, both experimentally and numerically, for Rb. The macromotion frequencies of the ion trap for Rb are determined to be f = 43 kHz for the radial and f = 54 kHz for the axial frequencies, for the experimentally determined optimal operating parameters. The destructive off axis ion extraction and detection by ion counting is demonstrated. Finally, evidence for the stabilization and cooling of trapped ions, due to ion-atom interactions, is presented by studying the ion-atom mixture as a function of interaction time. The utility and flexibility of the whole apparatus, for a variety of atomic physics experiments, are discussed in conclusion.
- Subjects
ION traps; THIN films; TUNGSTEN; ELECTRODES; FABRY-Perot interferometers; ION-atom collisions; BINARY mixtures
- Publication
Applied Physics B: Lasers & Optics, 2014, Vol 114, Issue 1/2, p267
- ISSN
0946-2171
- Publication type
Article
- DOI
10.1007/s00340-013-5686-9