Sökning: "first-order hyperpolarizability"

Hittade 1 uppsats innehållade orden first-order hyperpolarizability.

  1. 1. Theoretical investigation of the first-order hyperpolarizability in the two-photon resonant region

    Magister-uppsats, Institutionen för fysik, kemi och biologi

    Författare :Mikael Bergstedt; [2007]
    Nyckelord :two-photon absorption; first-order hyperpolarizability; responce theory; time-dependent density functional theory; Hartree-Fock approximation;

    Sammanfattning : Time-dependent density functional theory calculations have been carried out to determine the complex first-order hyperpolarizability in the two-photon resonance region of the molecule IDS-Cab. Calculations show that three strongly absorbing states, in the ultraviolet region, are separated to the extent that no significant interference of the imaginary parts of the tensor elements of the first-order hyper-polarizability occurs. LÄS MER