Date of Award
9-10-2017
Document Type
Thesis
Degree Name
Engineering, MSE
First Advisor
Brandon A. Kemp
Committee Members
Dr. Ilwoo Seok; Dr. Paul Mixon
Call Number
LD 251 .A566t 2017 R34
Abstract
Optical properties of metal nanoparticles and core-shell nanoparticles are related to their plasmon response. Plasmonic resonance is the collective oscillations of conduction electrons in metal. The core-shell nanoparticles represent unique geometry and plasmonic resonance can be tuned either by changing the distance between core-shell nanoparticle or by changing their core to shell ratio. This work focuses on the theoretical design of single and multiple core-shell nanoparticles for exploring the resonance properties of core-shell nanoparticles using scattering theory. The results provide new and tunable optical properties of core-shell nanoparticles that solid single or multiple metal nanoparticles can not demonstrate. We have also theoretically demonstrated the reversal of optical forces on free charge carriers in positive refractive index nanostructures. Using the Mie's scattering theory and separation of optical momentum transfers to the bound and free charges and currents, we have shown that metal nanoparticles can exhibit strong momentum transfer to free carriers opposite to the direction of incident electromagnetic waves which depend on the size of the particle and polarization of incident wave.
Rights Management
This work is licensed under a Creative Commons Attribution 4.0 International License.
Recommended Citation
Rahaman, Mohammad Habibur, "Theory And Applications of Plasmonically Active Spherical and Core-Shell Nanoparticles" (2017). Student Theses and Dissertations. 585.
https://arch.astate.edu/all-etd/585
