Abbreviated Journal Title
J. Chem. Phys.
TRANS-BETA-CAROTENE; ELECTRONIC EXCITATIONS; STATE; SUSCEPTIBILITY; POLYENES; PROFILES; SPECTRA; MODEL; Physics, Atomic, Molecular & Chemical
The one- and two-photon optical absorption spectra as well as the frequency dependent third-harmonic generation response of a side-chain polymer containing 4-dialkylamino-4'-nitro-stilbene (DANS) as its side group have been measured over a wide range of frequency. A three-state model, based on an intermediate neglect of differential overlap/multireference double-configuration interaction description of the excited states, provides a coherent picture of the dynamic response of DANS, but fails in reproducing the red shift observed when going from the linear to the nonlinear absorption spectra; including vibronic coupling within the Franck-Condon approximation improves the fit. (C) 1995 American Institute of Physics.
Journal of Chemical Physics
Beljonne, D.; Brédas, J. L.; Cha, M.; Torruellas, W. E.; Stegeman, G. I.; Hofstraat, J. W.; Horsthuis, W. H. G.; and Möhlmann, G. R., "2-Photon Absorption And 3Rd-Harmonic Generation Of Di-Alkyl-Amino-Nitro-Stilbene (Dans) - A Joint Experimental And Theoretical-Study" (1995). Faculty Bibliography 1990s. 2988.