Colm Donnelly

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Reburial of human remains and concerns regarding pathogens and pollution prompted the search for, and assessment of, a 156-year-old graveyard. To locate this graveyard, historic and anecdotal information was compared to landscape interpretation from aerial photography. To assess and map the contents, surface collapses, metal detector indications, and(More)
Geographic location, time of reporting and need for rapid evaluation contributed to a lack of intelligence concerning a suspect burial site in scrub woodland (approximately 15 km from the last known location of a missing person) in Northern Ireland. Police received reports of a subsiding 'grave', which was evaluated positively using GPR and victim recovery(More)
The simultaneous generation of second and third order dispersion is demonstrated using nonlinearly chirped silicon waveguide gratings. The nonlinearly chirped gratings are designed to generate varying signs and magnitudes of group velocity dispersion and dispersion slope. The design, fabrication, and experimental characterization of the silicon waveguide(More)
The simultaneous generation of second and third order dispersion is demonstrated using nonlinearly chirped silicon waveguide gratings. Second order dispersion of -2.3&#x00D7;10<sup>6</sup> ps/nm/km and third order dispersion of 1.2&#x00D7;10<sup>5</sup> ps/nm<sup>2</sup>/km were demonstrated at 1.55&#x03BC;m.
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