1. National Research Council Canada, 100 Sussex Drive, Ottawa, Ontario K1A
0R6, Canada
2. Department
of Applied Physics, Hokkaido University, Kita-13 Nishi-8, Kita-ku, Sapporo
060-8628, Japan
3. Stockholm University, Alba Nova University Center,
Roslagstullsbacken 21, SE-10691 Stockholm,
Sweden
4. Lehrstuhl für
BioMolekulare
Optik, Ludwig-Maximilians-Universität, Oettingenstraße 67, 80538 München, Germany
5. State Key Laboratory of Molecular
Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023,
P. R. China