Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"Photonic properties"”.
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Photonic Properties of Organic Molecular Assemblies
A novel chiral oligomer synthesized in our group gave rise to interesting phase behavior, including the formation of a colorless, second order optically active phase and a blue phase as well. The optically active phase was shown to spontaneously form a very large total stored charge density upon …
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Photonic Properties of Liquid Crystalline Hydroxypropyl Cellulose in the Solid-state
… (HPC) is ideal for developing sustainable photonic materials to replace toxic dyes and pigments. The development of photonic HPC materials has been, so far, hindered by the difficulty to retain colouration in solid-state films. In this study, three methods to preserve the colour of …
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Development of multifunctional software for evaluating the photonic properties of new dielectric composite geometries
… unidirectional plane waves on a square grid. 1D photonic crystal stacks were arranged in a square array and it was discovered that sizeable bandgaps for 2D and 3D geometries appear along the principle axes for different polarizations of the structure. Furthermore, bandgaps in different directions …
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Photonic Properties of Self -Assembled Organic Materials: Supramolecular Films, and Nanoribbon -Templated Gels and Polymers
Photonic properties were studied in two self-assembled systems: supramolecular rodcoil self-assemblies, and materials templated with dendron rodcoil (DRC) nanoribbons. A rodcoil molecule contains covalently connected rod-like and coil-like segments. The aggregation of rodcoils forms supramolecular …
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Developing the spin qubit of the tin-vacancy center in diamond for quantum networks
… developing a system with excellent spin and photonic properties [8]. To date, no system has demonstrated excellence in both of these regards simultaneously. At a high level, this thesis develops the spin properties of the tin-vacancy (SnV) center in diamond, a system for which the excellence …
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Design of multidimensional nanophotonic materials with improved performance and functionalities
… a micrometer and below can exhibit extraordinary properties that are not present in their non-structured counterparts. Of particular interest are 3D microstructures, which have been found promising due to their unique photonic, electronic, thermal, and mechanical properties. Due to their unique …
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[Ru-POM] Photo-electrocatalysis
… investigation as the excellent photoluminescence properties and stability of Ruthenium polypyridyl complexes in multiple redox states can be coupled to the POM in order to extend the absorbance crosssection of the resulting complex into the visible region. In this thesis, remediation of organic …
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Impact of morphology and scale on the physical properties of periodic/quasiperiodic micro- and nano- structures
… novel metamaterials and functional devices for photonics and nanotechnology, and translate these advances into realworld applications. Parallel finite-difference time-domain (FDTD) and finite element analysis (FEA) programs are developed to investigate a wide range of problems, including optical …
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Self Assembling Phenylene Vinylene Materials and Devices
… coil. The molecular structure has integrated photonic properties resulting from phenylene vinylene segments in the rigid backbone of the rod segment. It has been found that these molecules aggregate spontaneously when cast from solution into discrete objects with dimensions on the order of a …
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Block copolymer photonic crystals
This thesis explores the photonic properties of block copolymer systems. One dimensionally periodic dielectric stacks are fabricated with symmetric, lamellar forming, copolymer systems: diblock copolymers, solvent swollen BCP materials, and homopolymer swollen BCP blends. Each system exhibits …
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Nanoscale Semiconductor Materials and Devices Employing Hybrid 1D and 2D Structures for Tunable Electronic and Photonic Applications
… 1D and 2D structures for Tunable Electronic and Photonic Applications. Major Professor: Dr. David B. Janes.</p> <p>Continued miniaturization of microelectronic devices over past decades has brought the device feature size towards the physical limit. Likewise, enormous `waste energy' in the form …
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Design and applications of 4-yl-(methyl)coumarins and their derivatives
… because they provide a means to vary surface properties. Responsive dynamic systems are classified as either reversible or irreversible. When light is used as a stimulus, the chemical moieties that produce the reversible and irreversible responses are known as photoswitches and photofuses, …
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Investigation of efficient spin-photon interfaces for the realisation of quantum networks
… of quantum processors which are linked via photonic channels. The key requirement, and at the same time the most demanding challenge, is the efficient distribution of entanglement between distant nodes. The two ground states of single spins confined in self-assembled InGaAs quantum dots …
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Fabrication of zein nanostructure
… The impact of nanoclays on the physical properties of zein films strongly depended on the film preparation techniques. The impact of nanoclay concentration was more pronounced in the films made by extrusion blowing technique than by the solvent casting technique. As the processability …
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Synthesis of poly(NIPAM-co-vmbpy) microspheres and transition metal monomers for metallopolymeric material construction
… was pure and exhibited interesting photochemical properties, lability of the ligands on the Ni monomers resulted in complication of their synthesis. Polymer microspheres of poly(NIPAM-co-vmbpy), the cross-linked copolymer constructed from NIPAM and vmbpy monomers, were synthesized from modified …