Adams, Benjamin Caleb (2024). High data rate atom interferometric gravimetry for inertial navigation applications. University of Birmingham. Ph.D.
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Adams2024PhD.pdf
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Abstract
This thesis details the development of a high-data rate absolute gravimeter targeting future applications in inertial navigation. The technology is underpinned by performing atom interferometry with stimulated Raman transitions with laser-cooled \(^{87}\)Rb. A key highlight of this work is validating a optical single sideband laser system based on fibre-Bragg grating filters which offers a promising pathway toward portable quantum sensing. Another highlight is validating a simple MOT dynamics model in the relatively unexplored high-data rate operation mode. Typically, the system operates with 30 Hz bandwidth by launching 1×10\(^8\) atoms at 0.25 ms\(^{−1}\) downwards at a temperature of 20 μK. Atom interferometry is performed with a T time of 2.5 ms giving a preliminary accuracy of 10 μg and a sensitivity of 20 \(\frac{μg}{\sqrt Hz}\)
| Type of Work: | Thesis (Doctorates > Ph.D.) | |||||||||
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| Award Type: | Doctorates > Ph.D. | |||||||||
| Supervisor(s): |
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| Licence: | All rights reserved | |||||||||
| College/Faculty: | Colleges > College of Engineering & Physical Sciences | |||||||||
| School or Department: | School of Physics and Astronomy | |||||||||
| Funders: | None/not applicable | |||||||||
| Subjects: | Q Science > QC Physics | |||||||||
| URI: | http://etheses.bham.ac.uk/id/eprint/14910 |
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