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Comparing thermal and lasing atomic sources for precision inertial measurement

Debs, John; Altin, Paul; Barter, Thomas; Doering, Daniel; Dennis, Graham; McDonald, Gordon; Robins, Nicholas; Close, John; Anderson, R P

Description

We compare the sensitivity of an interferometric measurement of gravity using a freely-falling, lasing atomic source to that achieved with a cold, thermal atomic source. We observe a higher fringe visibility with the lasing source, also the highest yet observed in such a configuration. We improve sensitivity by exploiting large momentum transfer beamsplitting (LMT), and discuss briefly the advantages of using a lasing atomic source for LMT. Most importantly, we measure no degradation of the...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Conference paper
URI: http://hdl.handle.net/1885/83147
Source: 2011 Int. Quantum Electron. Conf., IQEC 2011 and Conf. Lasers and Electro-Optics, CLEO Pacific Rim 2011 Incorporating the Australasian Conf. Optics, Lasers and Spectroscopy and the Australian Conf.
DOI: 10.1109/IQEC-CLEO.2011.6194138

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