Study of the optical properties of a molecular system interacting with a high-intensity electromagnetic field

2004 ◽  
Author(s):  
M. Gorayeb ◽  
J. L. Paz ◽  
A. J. Hernandez
Keyword(s):  
Electromagnetic Field ◽  
Optical Properties ◽  
High Intensity ◽  
Molecular System

COLLISIONAL EFFECT OF THE SOLVENT ON THE OPTICAL RESPONSES OF A TWO-LEVEL SYSTEM

2008 ◽  
Vol 17 (02) ◽  
pp. 213-224 ◽  
Author(s):  
A. MASTRODOMENICO ◽  
M. GORAYEB ◽  
J. L. PAZ
Keyword(s):  
Electromagnetic Field ◽  
Optical Properties ◽  
Noise Source ◽  
Molecular System ◽  
Three Dimensional ◽  
Level System ◽  
Pump Frequency ◽  
Optical Responses ◽  
Pump And Probe ◽  
Analytical Expressions

The optical properties of a two-level molecular system immersed in a thermal reservoir and irradiated by an electromagnetic field were studied using the optical stochastic Bloch equations. The effect of the solvent is modeled as a stochastical shift of the system's Bohr frequency and the electromagnetic field includes both pump and probe fields. The resulting analytical expressions were studied by means of two and three dimensional graphics of the optical properties as a function of the pump-frequency detuning factor and the strength of the noise source.

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.

SYMMETRY PROPERTIES IN THE STUDY OF THE RAYLEIGH-TYPE OPTICAL MIXING SIGNAL IN PRESENCE OF A THERMAL BATH

2013 ◽  
Vol 22 (01) ◽  
pp. 1350007
Author(s):  
J. L. PAZ ◽  
A. MASTRODOMENICO ◽  
M. A. IZQUIERDO
Keyword(s):  
Electromagnetic Field ◽  
Molecular System ◽  
Thermal Bath ◽  
Bloch Equations ◽  
System A ◽  
Symmetry Properties ◽  
Intensity Response ◽  
Optical Mixing ◽  
Cumulant Expansions

In this work are studied the symmetry properties of the Rayleigh-type optical mixing signal of a two-level molecular system immersed in a thermal bath and irradiated by a classical electromagnetic field. The solvent induces a random shift of the Bohr frequency in the molecular system. A methodology based in cumulant expansions is employed to obtain the average of the coherences, populations, and susceptibilities of Fourier components associated, calculated by the optical stochastic Bloch equations. These symmetry properties show the dependence of the measured spectra with the variations in the frequencies of the incident fields. Our results show that the inclusion of the thermal bath diminishes the intensity response as well it promotes the loss of the symmetry properties, compared with the same results in the absence of the bath.

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.

Optical properties of water under the action of the electromagnetic field in the infrared spectrum

2020 ◽  
Vol 30 ◽  
pp. 1046-1051
Author(s):  
R. Mghaiouini ◽  
N. Benzbiria ◽  
M.E. Belghiti ◽  
H.E. Belghiti ◽  
M. Monkade ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Optical Properties ◽  
Infrared Spectrum

Optical Properties and Local Electromagnetic Field Enhancement of Periodic Rectangular Nanohole Arrays in Au-Interlayer-Au Multilayer Films

Plasmonics ◽  
2016 ◽  
Vol 12 (6) ◽  
pp. 1929-1937 ◽  
Author(s):  
Zao Yi ◽  
Miao Liu ◽  
Jiangshan Luo ◽  
Xibin Xu ◽  
Weibin Zhang ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Optical Properties ◽  
Field Enhancement ◽  
Multilayer Films ◽  
Nanohole Arrays

scholarly journals Diffraction of Light by a Two-Dimensional Lattice of Spheres

2012 ◽  
Vol 2012 ◽  
pp. 1-10
Author(s):  
Bernard de Dormale ◽  
Vo-Van Truong
Keyword(s):  
Electromagnetic Field ◽  
Optical Properties ◽  
Multipole Expansion ◽  
Two Dimensional ◽  
Dimensional Lattice ◽  
Theoretical Approaches ◽  
Diffraction Of Light ◽  
Potential Applications ◽  
Computational Procedures ◽  
A New Technique

Two-dimensional arrays of particles are of great interest because of their very characteristic optical properties and numerous potential applications. Although a variety of theoretical approaches are available for the description of their properties, methods that are accurate and convenient for computational procedures are always sought. In this work, a new technique to study the diffraction of a monochromatic electromagnetic field by a two-dimensional lattice of spheres is presented. The method, based on Fourier series, can take into account an arbitrary number of terms in the multipole expansion of the field scattered by each sphere. This method has the advantage of leading to simple formulas that can be readily programmed and used as a powerful tool for nanostructure characterization.

scholarly journals Compressing magnetic field into high-intensity electromagnetic field with a relativistic flying mirror

2021 ◽  
Author(s):  
Xiaolong Zheng ◽  
Shuangyong Zhu ◽  
Xiaomei Zhang ◽  
Baifei Shen
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Field ◽  
High Intensity
Sign in / Sign up

Export Citation Format

Share Document