DPG Phi
Verhandlungen
Verhandlungen
DPG

Berlin 2005 – scientific programme

Parts | Days | Selection | Search | Downloads | Help

SYOO: Organic Optoelectronics and Photonics

SYOO 6: Poster

SYOO 6.46: Poster

Monday, March 7, 2005, 18:00–20:00, Poster TU A

CT interaction induced optical nonlinearities — •Mark Goebel1, Mounaim Deghmouche1, Boris Traber2, Ahmed El-Khawaga3, Lisa Korst1, and Rüdiger Wortmann11TU Kaiserslautern — 2Ruprecht-Karls-Universität Heidelberg — 3University of Assiut, Egypt

Second-order optical nonlinearities of organic materials are largely controlled by the charge-transfer properties of molecular chromophores. Charge-transfer may occur between a donor and an acceptor group in an intramolecular CT band, typically through a pi-conjugated system, or in an intermolecular (through-space) CT band. Quantitative relationships between molecular second-order polarizabilities and CT properties for both are established on the basis of consistent electric-field-induced second-harmonic generation (EFISHG), hyper-Rayleigh scattering (HRS) and electrooptical absorption measurements (EOAM). Results for a series of one and two-dimensional NLO chromophores including nondipolar structures with threefold symmetry, molecular CT complexes, supramolecular aggregates and phases with chemical reactions will be presented.

[1] R. Wortmann, K. Lukaszuk, Nonlinear Optical Responses of Molecules, Solides and Liquides: Methods and Applications, (2003) 179-193.

[2] B.Traber, J.J. Wolff, F. Rominger, T.Oeser, R.Gleiter, M.Goebel, R. Wortmann, Chemistry-A. European Journal, 10 (2004) 1227-1238.

[3] B. Traber, T. Oeser, R. Gleiter, M.Goebel, R. Wortmann, Eur. J. Org. Chem. (2004), 4387-4390.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2005 > Berlin