Relaxation times effects on the four wave-mixing signal for π-conjugated push-pull molecules within the two-state valence-bond charge-transfer model

Squitieri, Emilio; Paz, J. L.; Cusati, Teresa

doi:10.1016/j.jms.2004.12.010

Cited by 2 publications

(1 citation statement)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the case of push-pull molecules with V0 0 , the general spectrum contains twelve peaks [12] that are symmetric in intensity and position with the change in the resonance frequency from o to -o with i1 or 2. Due to the symmetry we have centered our attention in the first six peaks with frequency coordinate presented in the Table 1, considering its maximal point to study the behavior of the Polarization.…”

Section: Resultsmentioning

confidence: 99%

<title>Effects of the changes in the relaxation times on the FWM response of push-pull molecules</title>

2004

Self Cite

View full text Add to dashboard Cite

In the present work we have studied the changes in the FWM signal response considering the modification in the longitudinal and transversal relaxation times T1 and T2, respectively. These changes are obtained considering three cases of rate between longitudinal and transversal relaxation times T1/T2, with three orders of magnitude between them: a) 0.1, b) 1 and c) 10. These modifications are applied to push-pull molecules, taking into account the valence-bond charge-transfer model. Moreover, we have taken into account the symmetric values of V0 = 1 (corresponding to the electronic energy gap between the states involved in the model). Notable changes in maximal intensity of the peaks belong to the FWM spectrum are observed with the variation in the ratio between the relaxation times.

show abstract

Section: Resultsmentioning

confidence: 99%

<title>Effects of the changes in the relaxation times on the FWM response of push-pull molecules</title>

2004

Self Cite

View full text Add to dashboard Cite

show abstract

Solvent effects in the nonlinear optical properties using the Voigt function

Paz

Rodríguez

Cardenas

et al. 2016

J. Nonlinear Optic. Phys. Mat.

View full text Add to dashboard Cite

Nonlinear optical properties of a two-level molecular system immersed in a thermal bath have been studied in the present work. Solvent effects were explicitly considered by modeling the non-radiative interaction with the solute as a random variable. The innovation of this treatment is that it allows us to take into account the environment, inducing quantum effects not considered by classical treatment. The major contribution of the methodology proposed in this work, is the implementation of an approximant to the Voigt function as a probability distribution, because it allow us to cover a wider range of possible interactions among the solvent and the molecular system by simple changing the parameters [Formula: see text] and [Formula: see text], associated to the variances of the Lorentzian and Gaussian distributions, respectively.

show abstract

Relaxation times effects on the four wave-mixing signal for π-conjugated push-pull molecules within the two-state valence-bond charge-transfer model

Cited by 2 publications

References 53 publications

<title>Effects of the changes in the relaxation times on the FWM response of push-pull molecules</title>

<title>Effects of the changes in the relaxation times on the FWM response of push-pull molecules</title>

Solvent effects in the nonlinear optical properties using the Voigt function

Contact Info

Product

Resources

About