1. Wellman Center for Photomedicine Massachusetts General Hospital/Harvard Medical School 50 Blossom Street Boston MA 02114 USA
2. Institute for Biomedical Optic University of Lübeck Peter‐Monnik‐Weg 4 Lübeck 23562 Germany
3. Department of Chemical Engineering Tailored Optical Materials RG Münster University of Applied Sciences Stegerwaldstr. 39 Steinfurt 48565 Germany
4. Martinos Center for Biomedical Imaging Massachusetts General Hospital/Harvard Medical School 149 Thirteenth Street, Suite 2301 Charlestown MA 02129 USA
5. Department of Radiation Oncology Massachusetts General Hospital/Harvard Medical School 55 Fruit Street, Cox 3 Boston MA 02114 USA