Setter, A., Toroš, M. , Ralph, J. F. and Ulbricht, H. (2018) Real-time Kalman filter: cooling of an optically levitated nanoparticle. Physical Review A: Atomic, Molecular and Optical Physics, 97(3), 033822. (doi: 10.1103/PhysRevA.97.033822)
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Abstract
We demonstrate that a Kalman filter applied to estimate the position of an optically levitated nanoparticle, and operated in real-time within a field programmable gate array, is sufficient to perform closed-loop parametric feedback cooling of the center-of-mass motion to sub-Kelvin temperatures. The translational center-of-mass motion along the optical axis of the trapped nanoparticle has been cooled by 3 orders of magnitude, from a temperature of 300 K to a temperature of 162 ± 15 mK.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Toros, Dr Marko |
Authors: | Setter, A., Toroš, M., Ralph, J. F., and Ulbricht, H. |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | Physical Review A: Atomic, Molecular and Optical Physics |
Publisher: | American Physical Society |
ISSN: | 1050-2947 |
ISSN (Online): | 1094-1622 |
Published Online: | 15 March 2018 |
Data DOI: | 10.5258/SOTON/D0355 |
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