Observation of high-order motional resonances of an ion cloud in a Paul trap

摘要

In this paper we present experimental results on motional resonances of an ion cloud in a Paul trap at high-order motional oscillation modes mΩ ± nω_(z(r)). High-order resonances up to m = 4 are obtained, and very narrow collective resonances are observed at fundamental modes (ω_z, ω_r), parametric modes (second harmonic 2ω_z, 2ω_r) and high-order-combined modes (mΩ ± nω_z, mΩ ± nω_r, m ≥ 1, n = 1,2).