Browsing University of Galway Theses by Subject "optics"
Now showing items 1-2 of 2
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Shack-Hartmann Wavefront Sensing of Optical Vortices in a Turbulent Field
(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 ... -
Using spatial light modulators to investigate the limitations of adaptive optics performance for the European Extremely Large Telescope
(NUI Galway, 2024-02-02)The European Extremely Large Telescope (E-ELT) will be the world’s largest ground based optical / near-infrared telescope ever built. Its primary mirror, M1, will be 39 m in diameter and consist of 798 individual hexagonal ...