Cold collisions in a high-gradient magneto-optical trap
Ueberholz, B and Kuhr, S and Frese, D and Gomer, V and Meschede, D (2002) Cold collisions in a high-gradient magneto-optical trap. Journal of Physics B: Atomic, Molecular and Optical Physics, 35 (23). pp. 4899-4914. ISSN 0953-4075 (https://doi.org/10.1088/0953-4075/35/23/313)
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We present a detailed analysis of the cold collision measurements performed in a high-gradient magneto-optical trap with a few trapped Cs atoms first presented in Ueberholz et al (J. Phys. B: At. Mol. Opt. Phys. 33 (2000) L135). The ability to observe individual loss events allows us to identify two-body collisions that lead to the escape of only one of the colliding atoms (up to 10% of all collisional losses). Possible origins of these events are discussed here. We also observed strong modifications of the total loss rate with variations in the repumping laser intensity. This is explained by a simple semiclassical model based on optical suppression of hyperfine-changing collisions between ground-state atoms.
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Item type: Article ID code: 43774 Dates: DateEvent14 December 2002PublishedSubjects: Science > Physics Department: Faculty of Science > Physics Depositing user: Pure Administrator Date deposited: 09 May 2013 13:25 Last modified: 08 Apr 2024 20:29 URI: https://strathprints.strath.ac.uk/id/eprint/43774