Absorptive and dispersive responses in a two-level molecule with vibronic coupling: Permanent dipole moments effects

J. L. Paz, Marcos Loroño, Alberto Garrido Schaeffer, Lenin A. González-Paz, Edgar Marquez, Joan Vera-Villalobos, José R. Mora, Ysaias J. Alvarado

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

Resumen

Profiles of the nonlinear optical properties of a two-level system interacting with a thermal reservoir in Four-wave mixing have been studied. The model is a generalization of the conventional two-level approach, it includes a simplified description of the molecular structure and the explicit consideration of permanent dipole moment. The Born-Oppenheimer electronic energy curves consist of two intercrossing harmonic oscillators potentials, displaced both in their equilibrium minimum position and energy. The critical quantities for this analysis are the transition and permanent dipole moments. Our results show how both nonlinear absorption and dispersion responses, are affected by the vibronic coupling.

Idioma originalInglés
Número de artículo138885
PublicaciónChemical Physics Letters
Volumen779
DOI
EstadoPublicada - 16 sep 2021

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© 2021 Elsevier B.V.

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