1. Dublin Energy Lab, Technological University Dublin, City Campus, Dublin 8, Ireland
2. School of Physics & Clinical & Optometric Sciences, Technological University Dublin, City Campus, Kevin Street, Dublin D08 NF82, Ireland
3. Photonics Laboratory, (LPhiA) E.A. 4464, SFR Matrix, Université d’Angers, Faculté des Sciences, 2 Bd Lavoisier, 49000 Angers, France
4. Department of Civil, Structural & Environmental Engineering, Trinity College Dublin, Dublin 2, Ireland