Browsing University of Galway Theses (PhD Theses) by Author "Dainty, Chris"
Now showing items 1-9 of 9
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Correction of the Aberrations of the Eye Using Adaptive Optics with Pupil Tracking
Sahin, Betul (2011-09-01)Adaptive optics has long been used in the astronomical telescopes to acquire high resolution images via the real time correction of the rapidly changing wavefront aberrations. Human retinal images also suffer from rapidly ... -
Eye modelling for personalised intraocular lens design
Sheehan, Matthew (2012-08-03)Approximately 20 million cataract operations are performed per year worldwide, routinely removing the opaque cataractous lens and implanting an artificial intraocular lens (IOL). Modern technologies used to treat cataract ... -
A fibre based quad-cell wavefront sensor for high speed adaptive optics
Mackey, David (2014-05-20)The genesis of this thesis came out of the difficulties encountered when trying to apply adaptive optics correction to optical fields that contain scintillation (specklelike amplitude fluctuations). These scintillated ... -
High Resolution Flood Illumination Retinal Imaging System with Adaptive Optics
Suheimat, Marwan (2012-07-16)Retinal imaging has its advantages both in the research laboratory and medical applications. Acquiring high resolution in-vivo images of the retina requires some form of correction for aberrations. To address that, the ... -
Measurement of the Retinal Arteriolar Response to a Hyperoxic Provocation
O'Halloran, Margaret (2013-09-04)The endothelium is a monolayer of cells that lines the inner surface of blood vessels; it plays an important role in local blood flow regulation by secreting vasoactive factors, which modulate vascular tone, in response ... -
Numerical Modelling and Measurement of Spatial Coherence in a Lithographic System
Smith, Arlene (2011-09-30)For the last five decades, optical lithography has been used universally for the manufacture of integrated circuits. The drive towards smaller circuit feature size, and the resulting increase in resolution of lithography ... -
Shack-Hartmann Wavefront Sensing of Optical Vortices in a Turbulent Field
Murphy, Kevin (2011-07-18)An optical vortex is a point on an optical wavefront where there is a null of intensity and the phase is undefined. When the phase is defined over the range 2 pi radians, as is commonly done, the phase surrounding the ... -
Shaping the focal field in three dimensions using polarisation and phase
Kenny, Fiona (2013-05-27)Vectorial polarimetry is a novel high-resolution microscopy technique with potential applications in the characterisation of nano-materials, sub-diffraction limit microscopy, and single molecule imaging. Previous work had ... -
Spatio-Temporal Visual Response for Ocular Correction of Higher-Order Aberrations
De Lestrange-anginieur, Elie (2013-04-24)With the development of control aberration using adaptive optics (AO), particular emphasis has been given recently to the impact of higher-order aberrations (HOAs) on visual performance, with a view to improved refractive ...