Spatially resolved measurement of relaxation times in a microfabricated vapor cell

Horsley, Andrew and Du, Guan-Xiang and Treutlein, Philipp and Pellaton, Matthieu and Affolderbach, Christoph and Mileti, Gaetano. (2013) Spatially resolved measurement of relaxation times in a microfabricated vapor cell. In: Joint European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC), 2013 : 21 - 25 July 2013, Prague, Czech Republic. Piscataway, NJ, pp. 575-578.

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Official URL: http://edoc.unibas.ch/dok/A6337751

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We present a new characterisation technique for atomic vapor cells, combining time-domain measurements with absorption imaging to obtain spatially resolved information on decay times, atomic diffusion and coherent dynamics. The technique is used to characterise a microfabricated Rb vapor cell, with N2 buffer gas, placed inside a microwave cavity. High-resolution images of the population (T1) and coherence (T2) lifetimes in the cell are presented. Atom-wall collisions and atomic diffusion result in a `skin' of reduced T1 and T2 times around the edge of the cell. The technique also allows polarisation-resolved imaging of the microwave magnetic field inside the cell. Our technique is useful for vapor cell characterisation in atomic clocks, atomic sensors, and quantum information experiments.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Experimentelle Nanophysik (Treutlein)
UniBasel Contributors:Treutlein, Philipp and Horsley, Andrew and Du, Guanxiang
Item Type:Conference or Workshop Item, refereed
Conference or workshop item Subtype:Conference Paper
Note:Publication type according to Uni Basel Research Database: Conference paper
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Last Modified:02 Nov 2018 14:43
Deposited On:03 Jul 2015 08:53

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