Physics (Theses and Dissertations): Recent submissions
Now showing items 101-120 of 458
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Thermal and Athermal Characterisation of Slotted Semiconductor Lasers
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)Over the past few decades, the world has experienced a revolution in information and communications technologies that has affected almost every aspect of modern life. The growth in internet capabilities and services has ... -
Multiwavelength Observations of Solar Magnetic Phenomena and Particle Acceleration
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)The solar magnetic field is instrumental in controlling the dynamics and topology of all coronal phenomena. The magnetic flux we observe varies by a factor of ~8 over a twenty-two year cycle causing a modulation in the ... -
Examining How Planets Interact With The Stellar Wind Using 3D Numerical Models
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)The majority of planets do not exist in empty space, but are embedded in the stellar wind, which consists of mostly ionised Hydrogen ejected from the host star. Understanding stellar wind-planet interactions is of huge ... -
Disorder and synchronization in nonequilibrium Bose-Einstein condensates
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)In this thesis, we investigate the impact of spatial disorder on driven-dissipative Bose-Einstein condensates (BECs). Bose-Einstein condensation is a collective phenomenon where many particles spontaneously occupy a single ... -
Manipulation of Vanadium Oxide Characteristics for Applications: Resistive switching & Reflectance Anisotropy Spectroscopy
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)This thesis deals with the study of vanadium dioxide, vanadium pentoxide and the mixed 4+ and 5+ valence vanadium oxide phases, or Wadsley phases. Thin films (VO2) and single crystals (V2O5) are examined. Vanadium dioxide ... -
Optimisation of Electrolytically-gated Thin Film Transistors made from Printed Nanosheet Networks
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)Networks of two-dimensional nanosheets show great potential in a wide variety of different applications, with particular focus on the area of printed electronics. One of the main issues facing such nanosheet network ... -
Quantum Control of Thermodynamic Processes in Semiconductors
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)In this thesis, we explore theoretically the thermodynamics of heat exchange in laser driven solid state systems. In particular, we focus on the heat exchanged between phonons and a semiconductor quantum dot exciton, driven ... -
Low Frequency Observations of the Solar Corona using LOFAR
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)The Sun is a highly dynamic, active star, dictated by the evolution of its magnetic fields, which transition from periods of maximum activity to periods of minimum activity over an 11-year cycle. During solar maximum the ... -
Connections between Internal and Surface properties of Massive Stars
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)Massive stars have an important impact on the universe. They are responsible for the generation of many of the chemical elements such as oxygen and silicon. They can produce core collapse supernovae which impact the chemical ... -
Ultrafast Optical Nonlinearity of Liquid Phase Exfoliated Pdse2 Nanosheets.
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)In recent years, the study of condensed matter and optical physics has resulted in increasing technological progress, and this study may be credited with a significant portion of current scientific research and technical ... -
Evaluation of STEM@University Experiences for Transition Year Students
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)This master's monograph and research present a study on the influence of STEM@University (a non-formal, university-school intervention) on a Transition Year student's STEM identity, through the measurement of STEM capital, ... -
Dielectric Networks from solution processed 2D nanomaterials
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)Shortly after the demonstration of the existence of free-standing graphene, the need for large scale production of two-dimensional nanomaterials was met by the emergence of a solution processing method called liquid phase ... -
Probing the Solar Corona at High Temporal and Spatial Resolution with the Low Frequency Array
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)The solar corona is the outermost layer of the Sun's atmosphere. Advancements in radio astronomy over the last 50 years have revealed a number of radio phenomena which occur in the corona each with different temporal and ... -
LOFAR Observations of Shocks in the Solar Corona
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)The Sun can produce large-scale energetic events such as solar flares and coronal mass ejections, which can excite shock waves that propagate from the low solar atmosphere into interplanetary space. Such shocks can result ... -
Characterisation and Manipulation of Transition Metal Dichalcogenides via Atomic Force Microscopy
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)Scanning probe microscopy (SPM) has revolutionised nanotechnology and allowed the study and manipulation of materials at the nanoscale, making it ideal for the study of solid-state physics and semiconductor technologies. ... -
The Effects of Rotation on the Evolution of the First Stars in the Universe
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)Understanding the nature of the first stars is key to understanding the early Universe. With new facilities such as the James Webb Space Telescope we may soon have the first observations of the earliest stellar populations, ... -
NANOTECHNOLOGICAL CANTILEVER-BASED ANALYSIS OF INFECTIOUS DISEASE BIOMARKERS
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)Our history is pin-pointed with several events when a viral, parasite or bacterial pathogen disrupted its boundaries and influenced human culture and behaviour, shaping human past and present times. The continuous appearance ... -
On the control of quantum many-body systems
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)The ability to control and actively manipulate physical systems at a scale at which quantum properties manifest themselves is crucial for the development of quantum technologies. While, at present, it is possible to ... -
Transient Inhomogeneous Ionic Solutions -The Influence of the Magnetic Field Gradient
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)Solutions of paramagnetic ions and their response to magnetic field gradients of permanent magnets were studied. Paramagnetic fluids confined by solid walls only develop internal flows in a magnetic field gradient when a ... -
Thermodynamics of interacting many-body quantum systems
(Trinity College Dublin. School of Physics. Discipline of Physics, 2021)Technological and scientific advances have given rise to an era in which coherent quantum-mechanical phenomena can be probed and experimentally-realised over unprecedented timescales in condensed matter physics. In turn, ...