Firstly, this thesis would not be possible without Prof. David Mee. His insight and guidance throughout the course of this year has been of great value to me. I would like to thank Peter Yallamas for his feedback and suggestions. Also, for sourcing sample materials which was a tremendous help to this thesis. To all my friends, thanks for all the good memories we have made over the last couple years. I hope to still see some of your faces even though we are all going down different paths next year. Lastly, I would like to thank my family for their support not only for this thesis, but throughout my undergraduate degree.