1. Department of Chemistry, University of Copenhagen, 2100 Copenhagen Ø, Denmark
2. Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
3. Department of Physics, University of Ottawa, 150 Louis Pasteur, Ottawa, Ontario K1N 6N5,
Canada
4. National Research Council Canada,
100 Sussex Drive, Ottawa, Ontario K1N 5A2, Canada
5. Department of Chemistry, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5,
Canada
6. Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom
7. Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom