Optical Binding Energy Perturbation Theory Calculation

OPTICAL BINDING ENERGY PERTURBATION THEORY CALCULATION [Pg.13]

At this level of theory, the change in interaction energy is calculated using the fourth-order, time-dependent perturbation theory because overall the process is a four-photon one, in which two photons are absorbed and two are emitted. It is given by the following formula [Pg.14]

At this stage, it is convenient to distinguish between the photon creation and destruction events occurring at each center. The first case to be considered is when absorption and emission of the real photon occurs at different sites. In the second situation, scattering of a real photon takes place at the same [Pg.14]

In formula (34), /u, (f) = (0 /Ai(f) 0 ) is the ground state, permanent, electric dipole moment of species f, while ) is the molecular first hyperpolarizability tensor defined by [Pg.16]

In contrast to the result (31), where the retarded coupling tensor Vij k,R) appears, in Eq. (34), the zero frequency form is present, namely [Pg.16]

OPTICAL BINDING ENERGY PERTURBATION THEORY CALCULATION... [Pg.13]

Meyer et al. [75] studied the TES spectral range of different bulk ZnO samples in detail to obtain the binding energies of various donors. They have observed the splitting of TES lines into 2s and 2p states as a result of the effects of anisotropy and the polar interaction with optical phonons in polar hexagonal semiconductors. The effects of anisotropy and the polaron interactions were combined by employing the second-order perturbation theory and the results of numerical calculations of the... [Pg.170]

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