1. Department of Physics, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
2. Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
3. NRC-uOttawa Joint Centre for Extreme Photonics, Ottawa, Ontario K1A 0R6, Canada
4. Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
5. National Research Council Canada, 100 Sussex Dr., Ottawa, Ontario K1A 0R6, Canada