Parametric stabilization and cooling of microparticles in a quadrupole ion trap

Pavel Nagornykh; Bruce E. Kane

doi:10.1117/12.2064969

16 September 2014 Parametric stabilization and cooling of microparticles in a quadrupole ion trap

Pavel Nagornykh, Bruce E. Kane

Proceedings Volume 9164, Optical Trapping and Optical Micromanipulation XI; 916405 (2014) https://doi.org/10.1117/12.2064969
Event: SPIE NanoScience + Engineering, 2014, San Diego, California, United States

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.

Citation Download Citation

Pavel Nagornykh and Bruce E. Kane "Parametric stabilization and cooling of microparticles in a quadrupole ion trap", Proc. SPIE 9164, Optical Trapping and Optical Micromanipulation XI, 916405 (16 September 2014); https://doi.org/10.1117/12.2064969

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