Simulation of light trapping in waveguide structures containing graphene and negative index materials
Other Title(s)
نمذجة حصر الضوء في تركيبات أدلة ضوئية و موجية تحتوي على الجرافين
Dissertant
al-Ashal, Adham Muhammad Id al-Rahman
Thesis advisor
University
Islamic University
Faculty
Faculty of Science
Department
Department of Physics
University Country
Palestine (Gaza Strip)
Degree
Master
Degree Date
2017
English Abstract
Graphene is a monolayer material of carbon atoms.
It is two-dimensional and has a hexagonal lattice structure (also called honeycomb).It is the thinnest known material among all other materials so far, equivalent to a thickness of one carbon atom only.
However, it is considered to be one of the strongest known materials.
Graphene has attracted a high level of research interest because of its electronic transport and optical properties.
In this study, a new light trapping waveguide structure is proposed.
The proposed structure consists of a multilayer slab waveguide structure.
Two of the layers are considered as a Graphene material represented by an infinitesimally thin conducting Graphene layer up and down left hand material (LHM) layer .
The dispersion relation for the waveguide structure for both transverse magnetic (TM) and transverse electric (TE) modes in visible light frequencies ranges is investigated.
The attenuation of the effective refractive index to variations in the refractive index of the cladding is obtained.
This thesis has concluded that very strong attenuation which increases with the increasing of the mode's number and increases with the decreasing of the film thickness .
Also the attenuations are computed and illustrated versus the wavelength of the incident waves in the visible regions for both TE and TM waves.
LHM is better absorber of higher TE modes than that of higher TM modes and the best absorption is attained at shorter wavelengths in the visible region.
Moreover, the normalized electric profile of TE waves and normalized magnetic profile of TM waves shows more stronger electric field and magnetic field respectively.
Main Subjects
No. of Pages
81
Table of Contents
Table of contents.
Abstract.
Abstract in Arabic.
Chapter One : Basic waveguide equations.
Chapter Two : Graphene and metamaterials concepts.
Chapter Three : Three-layer planar waveguide containing graphene : TM-case.
Chapter Four : Three-layer planar waveguide containing graphene : TE-case.
Chapter Five : Conclusion.
References.
American Psychological Association (APA)
al-Ashal, Adham Muhammad Id al-Rahman. (2017). Simulation of light trapping in waveguide structures containing graphene and negative index materials. (Master's theses Theses and Dissertations Master). Islamic University, Palestine (Gaza Strip)
https://search.emarefa.net/detail/BIM-902547
Modern Language Association (MLA)
al-Ashal, Adham Muhammad Id al-Rahman. Simulation of light trapping in waveguide structures containing graphene and negative index materials. (Master's theses Theses and Dissertations Master). Islamic University. (2017).
https://search.emarefa.net/detail/BIM-902547
American Medical Association (AMA)
al-Ashal, Adham Muhammad Id al-Rahman. (2017). Simulation of light trapping in waveguide structures containing graphene and negative index materials. (Master's theses Theses and Dissertations Master). Islamic University, Palestine (Gaza Strip)
https://search.emarefa.net/detail/BIM-902547
Language
English
Data Type
Arab Theses
Record ID
BIM-902547
