Date of Award

9-30-2020

Document Type

Thesis

Degree Name

Engineering, MSE

First Advisor

Brandon Kemp

Committee Members

Paul Mixon; Ross Carroll

Call Number

LD 251 .A566t 2020 J68

Abstract

Studies have shown that materials exhibiting specific attributes can be propelled forward by photons of varying wavelengths within the visible light spectrum. This is enhanced by a momentum reversal due to the wave scattering of ejected electrons. Research has indicated that these effects are due to a particle's size and shape. Furthermore, these effects can lead to a tunability within cylinders/rods. The present research aims to provide an approximate macroscopic solution using Rayleigh theory to assess single and multiple particle forces for both ideal and causal systems. The forces are acquired through the integration of the Minkowski stress tensor just outside and inside of the particle bounds for the total and free carrier force, respectively. A method has been developed for obtaining the internal fields needed for the separation of these forces. All results obtained through Rayleigh analysis have been validated through Mie analysis. Rayleigh approximation provides a means of drastically reducing the complexities of computations for multiparticle systems compared with Mie theory. Furthermore, it holds the potential for designing large-scale enhanced propulsion surface materials. The research is comprised of closed-form calculations and simulation studies using this small particle approximation method for the purpose of enhancing tunable surface properties.

Rights Management

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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