Nonlinear responses in dusty plasmas.

Ding, Zhiyue, 1990-

Nonlinear responses in dusty plasmas.

dc.contributor.advisor	Hyde, Truell Wayne.
dc.creator	Ding, Zhiyue, 1990-
dc.creator.orcid	0000-0003-1554-5911
dc.date.accessioned	2022-06-14T13:26:23Z
dc.date.available	2022-06-14T13:26:23Z
dc.date.created	2020-12
dc.date.issued	2020-09-29
dc.date.submitted	December 2020
dc.date.updated	2022-06-14T13:26:24Z
dc.description.abstract	Dusty plasma as a system containing both plasmas and dust particles. Dusty plasma systems are found throught out the industy and the space, for example, dust are found in plasma etching and in TOKAMAKs, as well as Saturn rings. Thus, the study of dusty plasma helps to understand many systems in reality. In this dissertation, the interaction of dust particles in a plasma sheath has been studied to determined the nature of the non-linear interaction. Theoretical model for describing the nonlinear dust interaction has been established and used to explain experimental observations. This dissertation is arranged in the following way. In chapter one, a background introduction of dusty plasmas is provided. In chapter two, a theoretical model describing the motion of two coupled dust particles considering nonlinear particle-particle interaction is established, and a perturbation method is used to analytically solve this model. In chapter three, experiments measuring amplitude-frequency responses are introduced and the nonlinear interaction is studied based on the model established in chapter two. In chapter four, the model established in chapter two is extended to a higher degree of freedom, which explains the ‘internal resonance’ that is observed for the first time in dusty plasma. In chapter five, a Bayesian optimization-based automatic method for response analysis of a single dust particle is proposed. In chapter six, a quick estimation method is proposed for measuring the charge of dust particles in the plasma sheath.
dc.format.mimetype	application/pdf
dc.identifier.uri	https://hdl.handle.net/2104/12054
dc.language.iso	en
dc.rights.accessrights	Worldwide access
dc.subject	Dusty plasmas. Nonlinear physics. Dust particles. Plasma sheath.
dc.title	Nonlinear responses in dusty plasmas.
dc.type	Thesis
dc.type.material	text
thesis.degree.department	Baylor University. Dept. of Physics.
thesis.degree.grantor	Baylor University
thesis.degree.level	Doctoral
thesis.degree.name	Ph.D.