A Singlet Oxygen Image with 2.5 μm Resolution Andersen, Lars Klembt ; Gao, Zhan ; Ogilby, Peter R. ; Poulsen, Lars ; Zebger, Ingo Abstract Publication: Journal of Physical Chemistry A Pub Date: September 2002 DOI: 10.1021/jp021108z Bibcode: 2002JPCA..106.8488A