1. Institut für Experimentelle und Angewandte PhysikUniversität Regensburg Universitätsstrasse 31 93053 Regensburg Germany
2. Centre for Organic Photonics & ElectronicsSchool of Chemistry and Molecular BiosciencesThe University of Queensland Brisbane Queensland 4072 Australia
3. National Deuteration FacilityAustralian Nuclear Science and Technology Organization (ANSTO) Locked Bag 2001 Kirrawee DC NSW 2232 Australia
4. Department of Physics and AstronomyUniversity of Utah 115 South 1400 East Salt Lake City UT 84112 USA