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Proceedings Paper

Parametric stabilization and cooling of microparticles in a quadrupole ion trap
Author(s): Pavel Nagornykh; Bruce E. Kane
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Paper Abstract

We discuss the current progress on study of cooling of levitated microparticles under high vacuum conditions (6×10-7 Torr). Particle levitation as well as feedback cooling are done using an electrical AC trap (quadrupole ion trap). It is shown that we can cool particle motion in all three degrees of freedom to 50-100K and increase their trapping time from a few hours without feedback to times exceeding weeks when the particles are cooled. The cooling is achieved by FM modulation of the AC trap frequency, and data on its dependence on gain settings is presented.

Paper Details

Date Published: 16 September 2014
PDF: 6 pages
Proc. SPIE 9164, Optical Trapping and Optical Micromanipulation XI, 916405 (16 September 2014); doi: 10.1117/12.2064969
Show Author Affiliations
Pavel Nagornykh, Univ. of Maryland, College Park (United States)
Bruce E. Kane, Joint Quantum Institute, Univ. of Maryland (United States)

Published in SPIE Proceedings Vol. 9164:
Optical Trapping and Optical Micromanipulation XI
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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