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Precision optomechanics with a particle in a magneto-gravitational trap
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Paper Abstract

Levitated particles are attractive systems for precision optomechanics due to their extreme isolation from their environment. Here we describe several experiments with microparticles in magneto-gravitational traps, which use a combination of diamagnetism and the earth's gravity. First, the center-of-mass motion of the particle can be cooled to temperatures far below the ambient temperature using feedback. Second, the change in the frequency of oscillation of the particle under the influence of field masses can be used to measure the Newtonian gravitational constant. Finally, the fjrst steps towards producing and trapping silicon carbide microcrystals, which may contain optically-addressable defect centers, are reported.

Paper Details

Date Published: 1 March 2019
PDF: 13 pages
Proc. SPIE 10934, Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology, 109340P (1 March 2019); doi: 10.1117/12.2515721
Show Author Affiliations
Walter M. Klahold, Montana State Univ. (United States)
Charles W. Lewandowski, Montana State Univ. (United States)
Paul Nachman, Montana State Univ. (United States)
Bradley R. Slezak, Montana State Univ. (United States)
Brian D'Urso, Montana State Univ. (United States)


Published in SPIE Proceedings Vol. 10934:
Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology
Selim M. Shahriar; Jacob Scheuer, Editor(s)

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