Qiao, KeMatthews, Lorin Swint.Hyde, Truell Wayne.2010-05-102010-05-102010-04-10IEEE Transactions on Plasma Science, 38(4), 826-832, 2010http://hdl.handle.net/2104/5770Vibrational modes and instabilities of a dust-particle pair in a terrestrial aboratory complex plasma are investigated by employing an analytical method whereby the plasma wakefield induced by an external electric field is modeled using an image-charge method. It is found that for both horizontally and vertically aligned dust-particle pairs in equilibrium, four normal modes exist. Variations of the confinement parameters cause a single type of instability in the horizontal pair and two types of nstabilities in the vertical pair.261039 bytesapplication/pdfenArticle10.1109/TPS.2010.2040397