Modeling of gold nanoparticles embedded in nematic liquid crystal using the FDTD method
Year: 2009
Type: dissertation
Abstract: In this thesis we aim to study the optic response of gold nanostructures embedded in nematic liquid crystal. For this goal we propose a simple and systematic procedure to develop finite-difference time-domain method applicable to dielectric isotropic media, dispersive media (Gold nanoparticles) and anisotropic media (liquid crystals). Moreover, special attention is paid to the efficient truncation of the FDTD computational window. We show that by rotating the optical axis around an axis orthogonal to the main direction of illumination, it is possible to tune the response of the system according to a simple law. The spectral width of the tunability is studied as a function of different geometrical parameters. Results show that using gold nanoparticles in liquid crystal may have a great potential of application in biosensing and SERS
Author: Montacer Dridi
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2773333558