Browsing Physics (Theses and Dissertations) by Title
Now showing items 56-75 of 417
-
Data-driven magnetic materials inverse design
(Trinity College Dublin. School of Physics. Discipline of Physics, 2024)Magnetic materials have diverse applications across multiple sectors, ranging from magnetic resonance imaging machines, used to detect diseases, to electric motors, sensors, and wind turbines just to name a few. The demand ... -
Defect engineering of ultra-thin layered molybdenum disulfide towards novel memristive and optoelectronic applications
(Trinity College Dublin. School of Physics. Discipline of Physics, 2019)In the ever-evolving field of nanoelectronics, new paradigms are constantly sought-after to improve the performance of next-generation circuit components. In the last decade, two-dimensional (2D) semiconductors have emerged ... -
Deformation and Yield of Polymer Thin Films in Confined Geometries
(Trinity College Dublin. School of Physics. Discipline of Physics, 2019)Polymer thin film mechanics represents a hugely promising field of research. Due to their versatility and ease of fabrication, polymer films and coatings rank among the most ubiquitous systems in all of nanotechnology. The ... -
Design and characterization of widely tunable semiconductor lasers based on etched slots
(Trinity College (Dublin, Ireland). School of Physics, 2015)Tunable semiconductor lasers play an important role in numerous technologies for optical communication and sensing systems. They are widely used in dense wavelength division multiplexed (DWDM) systems and in other important ... -
Design and fabrication of a waveguiding organic double heterostructure light-emitting device : a milestone in the development of an electrically pumped polymer laser
(Trinity College (Dublin, Ireland). School of Physics, 2003)The development of an electrically pumped polymer laser fabricated using simple solution processing would revolutionise the optial data storage and communications industry. In order to achieve this, a research strategy, ... -
Design of Novel Magnetic Materials with Machine-Learning and High-Throughput Techniques
(Trinity College Dublin. School of Physics. Discipline of Physics, 2024)The importance of magnetic materials in modern applications is unquestionable. They are used in a wide range of applications, going from data storage devices to green energy production. This class of materials is well known ... -
Design of optical system for heat-assisted magnetic recording
(Trinity College (Dublin, Ireland). School of Physics, 2012) -
The Design, Characterisation and Athermalisation of Vernier Widely Tunable Semiconductor Lasers
(Trinity College Dublin. School of Physics. Discipline of Physics, 2023)The early 21st century has seen a surge in demand for communications technologies, particularly with the internet having become a near essential utility in recent years. The rise of high-resolution video streaming, among ... -
Developing a Next Generation Readout System for Microwave Kinetic Inductance Detectors
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)Microwave Kinetic Inductance Detectors (MKIDs) are photon detectors based on superconducting resonators, capable of detecting single photons with inherent energy resolution and μs time resolution, while also allowing ... -
Development and Characterisation of a Zero-Moment Half-Metal
(Trinity College Dublin. School of Physics. Discipline of Physics, 2021)A dream material for spintronics would have low/zero net moment, no stray fields, high resonance frequency, low damping and be 100 % spin polarised. Such materials combine the best features of a ferromagnet and an ... -
Development and optimisation of optical interferometric techniques for surface metrology
(Trinity College (Dublin, Ireland). School of Physics, 2000)Optical surface metrology techniques offer many advantages over conventional methods. These include a greater sensitivity, improved lateral and vertical resolution, non-contact and full-field measurements and the fact that ... -
Development of a cantilever based device for the investigation of malaria vaccine cross-reactivity
(Trinity College (Dublin, Ireland). School of Physics, 2015)The invention of the atomic force microscope and subsequent implementation of cantilevers as transducers for sensing applications laid the foundation for the current use of cantilevers as biosensors. This application ... -
Development of Atmospheric PLD of Plasmonic Metal Nanoparticle Films for SERS Application
(Trinity College Dublin. School of Physics. Discipline of Physics, 2018)For the fast uptake into industrial applications, the further development of fabrication methods for nanomaterials which are inexpensive and simultaneously technologically feasible is one of the major key factors. One ... -
DEVELOPMENT OF MAGNETORESISTIVE SENSORS FOR NANOWIRE DETECTION TARGETED AT BIOLOGICAL APPLICATIONS
This research project has been focused on developing technologies for the detection of single segment and multi-segment magnetic nanowires using yoke shaped GMR sensors and TMR MgO-barrier magnetic tunnel junction sensors ... -
Dielectric focusing elements for integrated optics
(Trinity College Dublin. School of Physics. Discipline of Physics, 2018)The ability to propagate light around a `circuit' on a single chip has an abundance of applications. Connecting different elements can bring huge functionality to a minuscule device---as evidenced by integrated electronic ... -
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 ... -
Disks around weak-line T Tauri stars
(Trinity College (Dublin, Ireland). School of Physics, 2006)The formation of low -mass (M ~ 1 M⊙) stars has generally been divided into four stages before reaching the main sequence: Class 0 (cloud of gas and dust) -> Class I (embedded star with disk in envelope) -> Class II (visible ... -
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 ... -
Dispersion and characterisation of carbon nanotube and MoSI nanowire composites
(Trinity College (Dublin, Ireland). School of Physics, 2007)Recently, composites of polymers with various one-dimensional nanoparticles, mainly carbon nanotubes, have been investigated to develop robust electrically and thermally conductive materials or for mechanical reinforcement. ... -
Dispersion of the third order optical nonlinearity & all-optical switching figures of merit in molecularly engineered polymers
(Trinity College (Dublin, Ireland). School of Physics, 2002)Solid state and solution measurements of the effective third order nonlinear absorption and refraction, have been earned out on poly (2,5-dioctyloxy-paraphenylene-vinylene-co-2,5- pyridinyl) (Pyridinyl PAV), poly ...