@article{SpitzvonSeggernGrunwaldtetal.2002, author = {Spitz, Christian and von Seggern, David and Grunwaldt, Gisela and Menzel, Ralf}, title = {Biochemical Diagnostics by Excited State Absorption Spectroscopy}, isbn = {0-8194-4365-4}, year = {2002}, language = {en} } @article{vonSeggernModrakowskiSpitzetal.2004, author = {von Seggern, David and Modrakowski, Claudia and Spitz, Christian and Schl{\"u}ter, A. D. and Menzel, Ralf}, title = {Charge transfer initiated by optical excitation in diester substituted biphenylpyrene as a function of the solvent characterized by excited state absorption spectroscopy}, year = {2004}, abstract = {Cross-sections for ground and excited state absorptions of the charge transfer system 3-(3-tert- butoxycarbonylamino-propyl)-4'-pyren-1-yl-biphenyl-2,5-dicarbo xylicacid dimethyl ester (Py-C) are determined from nonlinear absorption and fluorescence measurements as a function of solvent. While in non-polar solvents no stable charge transfer (CT) state occurs after optical excitation, in polar solvents the CT state is stabilized. (C) 2004 Elsevier B.V. All rights reserved}, language = {en} } @article{TedeschiLiMoehwaldetal.2004, author = {Tedeschi, Concetta and Li, L. and M{\"o}hwald, Helmuth and Spitz, Christian and von Seggern, David and Menzel, Ralf and Kirstein, Stefan}, title = {Engineering of layer-by-layer coated capsules with the prospect of materials for efficient and directed electron transfer}, year = {2004}, abstract = {We show a Lefschetz fixed point formula for holomorphic functions in a bounded domain D with smooth boundary in the complex plane. To introduce the Lefschetz number for a holomorphic map of D, we make use of the Bergman kernel of this domain. The Lefschetz number is proved to be the sum of the usual contributions of fixed points of the map in D and contributions of boundary fixed points, these latter being different for attracting and repulsing fixed points}, language = {en} } @article{LiMoehwaldSpitzetal.2005, author = {Li, L. and M{\"o}hwald, Helmuth and Spitz, Christian and von Seggern, David and Mucke, M. and Menzel, Ralf}, title = {Long-lived photoinduced charge separation inside polarity gradient capsules}, year = {2005}, language = {en} }