Solvent effects over optical properties of a two-level molecular system

2004 ◽  
Author(s):  
J. L. Paz ◽  
M. Gorayeb ◽  
A. J. Hernandez
Keyword(s):  
Optical Properties ◽  
Solvent Effects ◽  
Molecular System

Solvent effects in the nonlinear optical properties using the Voigt function

2016 ◽  
Vol 25 (02) ◽  
pp. 1650016 ◽  
Author(s):  
J. L. Paz ◽  
Luis G. Rodríguez ◽  
Juan F. Cárdenas ◽  
Cesar Costa-Vera
Keyword(s):  
Optical Properties ◽  
Solvent Effects ◽  
Nonlinear Optical ◽  
Molecular System ◽  
Random Variable ◽  
Nonlinear Optical Properties ◽  
Thermal Bath ◽  
Gaussian Distributions ◽  
Radiative Interaction ◽  
Voigt Function

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.

SOLVENT EFFECTS IN THE DETERMINATION OF THE NONLINEAR OPTICAL PROPERTIES

2008 ◽  
Vol 17 (04) ◽  
pp. 511-520 ◽  
Author(s):  
A. MENDOZA-GARCÍA ◽  
J. L. PAZ ◽  
M. GORAYEB ◽  
A. J. HERNÁNDEZ ◽  
E. CASTRO ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Probability Distribution ◽  
Absorption Coefficient ◽  
Solvent Effects ◽  
High Intensity ◽  
Signal Intensity ◽  
Nonlinear Optical ◽  
Molecular System

The interaction between a two-level molecular system and a high intensity electric field under the influence of a solvent was analyzed through the OSBE. To solve these equations, the average of the coherence was performed, using a generalized Lorentzian approximation for the Voigt's function as a probability distribution. Applying the convolution theorem, we were able to find an analytical expression for the coherence, from which we calculate optical properties, such as the absorption coefficient, refractive index and emitted signal intensity. In this contribution, we show numerical results for these properties, calculated for a standard model of organic colorants, Green Malaquite.

Unusual Solvent Effects on Optical Properties of Bi-Icosahedral Au25 Clusters

2017 ◽  
Vol 121 (6) ◽  
pp. 3530-3539 ◽  
Author(s):  
Viraj Dhanushka Thanthirige ◽  
Ekkehard Sinn ◽  
Gary P. Wiederrecht ◽  
Guda Ramakrishna
Keyword(s):  
Optical Properties ◽  
Solvent Effects

THEORETICAL MODEL FOR THE CALCULATION OF OPTICAL PROPERTIES OF GOLD NANOPARTICLES

2010 ◽  
Vol 19 (03) ◽  
pp. 427-436
Author(s):  
A. MENDOZA-GARCÍA ◽  
A. ROMERO-DEPABLOS ◽  
M. A. ORTEGA ◽  
J. L. PAZ ◽  
L. ECHEVARRÍA
Keyword(s):  
Gold Nanoparticles ◽  
Refractive Index ◽  
Optical Properties ◽  
Theoretical Model ◽  
Absorption Coefficient ◽  
Molecular System ◽  
Two Dimensional ◽  
Box Models ◽  
Solvent Environment ◽  
Absorption And Dispersion

We have developed an analytical method to describe the optical properties of nanoparticles, whose results are in agreement with the observed experimental behavior according to the size of the nanoparticle under analysis. Our considerations to describe plasmonic absorption and dispersion are based on the combination of the two-level molecular system and the two-dimensional quantum box models. Employing the optical stochastic Bloch equations, we have determined the system's coherence, from which we have calculated expressions for the absorption coefficient and refractive index. The innovation of this methodology is that it allows us to take into account the solvent environment, which induce quantum effects not considered by classical treatments.

Solvent effects on structure and optical properties of a D-π-A azobenzene dye

2007 ◽  
Vol 16 (11) ◽  
pp. 3323-3327 ◽  
Author(s):  
Wang Chuan-Kui ◽  
Xing Xiao-Juan ◽  
Huang Xiao-Ming ◽  
Gao Yun
Keyword(s):  
Optical Properties ◽  
Solvent Effects

Strong Solvent Effects on the Nonlinear Optical Properties of Z and E Isomers from Azo-Enaminone Derivatives

2016 ◽  
Vol 120 (31) ◽  
pp. 17660-17669 ◽  
Author(s):  
Daniel F. S. Machado ◽  
Thiago O. Lopes ◽  
Igo T. Lima ◽  
Demétrio A. da Silva Filho ◽  
Heibbe C. B. de Oliveira
Keyword(s):  
Optical Properties ◽  
Solvent Effects ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties

Solvent effects on the electrical and magnetic spectroscopic properties of azo-enaminone derivatives in methanol and in water

2018 ◽  
Vol 42 (14) ◽  
pp. 12032-12044 ◽  
Author(s):  
Leonardo Bruno Assis Oliveira ◽  
Luizmar Adriano Júnior ◽  
Guilherme Colherinhas
Keyword(s):  
Optical Properties ◽  
Gas Phase ◽  
Solvent Effects ◽  
Spectroscopic Properties ◽  
Water Solutions

We have investigated the solvent effects on the nonlinear and spectroscopic optical properties of some azo-enaminone molecules in the gas phase and in methanol and water solutions.

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