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.
Results
Showing 1 to 10 of 10 for “"wide field imaging"”.
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Acoustic/Gravity Wave Phenomena in Wide-Field Imaging: From Data Analysis to a Modeling Framework for Observability in the Mlt Region and Beyond
… challenges in Aeronomy that require a wide range of instrumentation with distinct operational principles. Most measurements share the common features of integrating optical emissions or effects on radio waves through deep layers of the atmosphere. The geometry of these integrations …
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Interferometric Methods
… core of antennas, necessitating advances in imaging methods for these very dense cores versus more traditionally sparse instruments. Another ambitious experiment is the Hydrogen Epoch of Reionisation Array (HERA) in South Africa which hopes to make the first direct detection of the Epoch of …
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Investigating self-assembly of linked oligomeric PPV-based materials
Single molecule wide-field polarization fluorescence imaging is an experimental method to determine the self-assembly of molecules dispersed in a thin film. Through a combination of wide-field imaging and confocal spectroscopy, the effect of synthetic structure of the oligomeric PPV-based materials …
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Three-Dimensional Microscopy by Laser Scanning and Multi-Wavelength Digital Holography
… laser beam focused on a sample, while non-imaging detector receives the scattered light is presented. The images produced by this method are analogous to the scanning electron microscopy with visible effects of shadowing and reflection. Compared to a conventional wide-field imaging system, …
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Multiwavelength Study of Photodissociation Regions and a Near -Infrared Imager
… of the color temperature of the illuminating field (Spaans, Tielens, van Dishoeck & Bakes). Chapter 1 is the introduction and presents the motivation for this work. In Chapter 2, high-resolution millimeter-wavelength maps of the high-density PDR in the Orion Bar were used to evaluate the PDR …
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Development of a Multispectral VIS-SWIR Imaging Modality for Cutaneous Water Assessment
… fourth leading cause of nonfatal disability worldwide. Diagnosis and management are predominantly based on clinician visual assessment of disease related changes in skin morphology. The qualitative nature of this method can result in misdiagnosis and underdiagnoses of treatable diseases. There …
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A Multiwavelength Analysis of the Effect of Cluster Environments on Galaxy Evolution
… to galaxies that reside in the less dense field where it is ‘alone’. Within clusters, the buildup of red, passive galaxies is observed to be in excess of the field, yet the mechanisms responsible for this graveyard of galaxies remain to be clearly identified. This indicates that external …
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Optimizing The Performance Of As-manufactured Grazing Incidence X-ray Telescopes Using Mosaic Detector Arrays
The field of X-ray astronomy is only forty (43) years old, and grazing incidence X-ray telescopes have only been conceived and designed for a little over fifty (50) years. The Wolter Type I design is particularly well suited for stellar astronomical telescopes (very small field-of-view). The first …
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Quantum sensing and simulation with solid-state defects
… communications. Despite the fast progress of the field in the past decades, numerous challenges remain before these applications can be fully realized in broader scenarios. Among the issues that need to be addressed are deleterious decoherence and low-fidelity control, and the lack of critical …
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Accurate image reconstruction in radio interferometry
This thesis is concerned with accurate imaging from radio interferometry data and with subsequent analysis so as to determine source positions and fluxes in the radio sky. The thesis makes proposals and implementations of new algorithms, which substantially improve the accuracy of image products …