1. Singlet Oxygen Generation via Two-Photon Excited FRET

W. R. Dichtel, J. M. Serin, C. Edder, J. M. J. Fréchet, M. Mastuszewski, L.-S. Tan, T. Y. Ohulchanskyy, P. N. Prasad J. Am. Chem. Soc. 2004126, 5380-5381. Full Text.