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Digitale Medien

Quasiparticle exciton representation of frequency dispersed optical nonlinearities of conjugated polyenes (1992)

Wang, Hong Xiang ; Mukamel, Shaul

College Park, Md. : American Institute of Physics (AIP)

The Journal of Chemical Physics 97 (1992), S. 8019-8036

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Details

ISSN: 1089-7690

Quelle: AIP Digital Archive

Thema: Physik , Chemie und Pharmazie

Notizen: The frequency dispersion of χ(3) of conjugated polyenes is calculated using equations of motion which provide an anharmonic (exciton) oscillator picture. Quantum confinement of the relative electron–hole motion is shown to play an important role in determining the magnitude of χ(3). The nature of the two-photon resonance observed in two-photon absorption and third harmonic generation is discussed, and the electroabsorption spectrum is calculated for a broad range of polyene sizes with up to 160 double bonds.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.463425

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