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Design and optimization of integrated optical antennas and LNOI waveguide structures / von M. Sc. Henna Farheen ; Erster Gutachter: Prof. Dr. Jens Förstner, Zweiter Gutachter: Prof. Dr. J. Christoph Scheytt. Paderborn, 2024
Inhalt
Introduction
Theoretical background
Maxwell's equations
Antennas for light
Antenna theory
Characteristics of an antenna
Linear antennas
Hertzian dipole
Linear dipole
Traveling-wave antennas
Diffraction gratings
Antenna arrays
Linear antenna arrays
Circular antenna arrays
Numerical methods and optimization
Finite integration technique
Discretization of Maxwell's equations
Discretization of material equations
Boundary conditions
Integration of time
Numerical stability
Optimization theory
Mathematical formulation
Algorithms used for optimization
Highly directive antennas
From leaky-wave to guided-wave antennas
Analysis of the excitation source
Analysis of the antenna geometry and material
Optimization of the optical waveguide antennas
Optimization of rectangular antennas
Optimization of horn antennas
Optimization of tip antennas
Comparative study of all the investigated antennas
Optical phased arrays
Architecture of the optical phased arrays
Radiating elements for the optical phased arrays
Optimizing the upward radiation efficiency
Optimizing the field-of-view radiation efficiency
Optical phased array configurations
Planar arrays
Circular arrays
LNOI waveguide structures
Wave propagation in anisotropic media
Investigated optical components
Directional couplers
Waveguide bends
Multi-mode interference couplers
Summary
List of figures
List of tables
Acronyms
Symbols
List of publications
Bibliography
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