Propagation of the Four-Wave Mixing signal in a molecular system: stochastic considerations of the thermal bath

This work studies the spatial propagation of the Four-Wave Mixing (FWM) signal of a molecular system (malachite green) with two electronic levels immersed in a thermal bath, under a perturbative treatment at all order in the pump field and to first order in the probe and signal fields. Using the Op...

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Main Authors: Paz Rojas, Jos? Luis, Rodr?guez, Luis Gerardo
Format: Artículos
Language:eng
Published: 2016
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Online Access:http://repositorio.educacionsuperior.gob.ec/handle/28000/3132
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spelling oai:localhost:28000-31322017-11-01T18:01:03Z Propagation of the Four-Wave Mixing signal in a molecular system: stochastic considerations of the thermal bath Paz Rojas, Jos? Luis Rodr?guez, Luis Gerardo PROPAGATION FOUR-WAVE MOLECULAR SYSTEM This work studies the spatial propagation of the Four-Wave Mixing (FWM) signal of a molecular system (malachite green) with two electronic levels immersed in a thermal bath, under a perturbative treatment at all order in the pump field and to first order in the probe and signal fields. Using the Optical Stochastic Bloch Equations OSBE, we present three approximations, two of them with analytical solutions and the third with a numerical approach, where the effects of the variation of pump intensity through the path optical are considered. We compare these results with the analogous in absence of the thermal reservoir. The stochastic effects induced by the solvent, due to the experimental conditions as relaxation times, chemical concentration of the solution and optical frequencies of the fields, diminishes the intensity responses compared with the same in absence of the bath Este trabajo presenta un estudio detallado de la propagaci?n espacial de la se?al de mezcla de cuatro ondas (MCO) en un sistema molecular (malaquita verde) con dos niveles electr?nicos inmerso en un ba?o t?rmico, bajo un tratamiento perturbativo a todos los ?rdenes en el campo de bombeo y primer orden en los campos de prueba y de se?al. Usando las ecuaciones de Bloch ?pticas estoc?sticas (EBOE), presentamos tres aproximaciones, dos de ellas son soluciones anal?ticas y la otra es de tipo num?rico, donde se consideran los efectos de la variaci?n de la intensidad del bombeo a trav?s del camino ?ptico. Comparamos esos resultados con los an?logos en ausencia del reservorio t?rmico. Los efectos estoc?sticos inducidos por el solvente, debido a las condiciones experimentales como tiempos de relajaci?n, concentraci?n qu?mica de la soluci?n y frecuencias ?pticas de los campos, disminuyen la respuesta de intensidad comparado con la misma en ausencia del ba?o Escuela Polit?cnica Nacional https://dialnet.unirioja.es/servlet/articulo?codigo=5195759 2016-11-09T19:44:56Z 2016-11-09T19:44:56Z 2015 article Paz,Jos? Luis. (2015). Propagation of the Four-Wave Mixing signal in a molecular system: stochastic considerations of the thermal bath. Vol. 48, N?. 3, pp. 225-242 2171-8814 http://repositorio.educacionsuperior.gob.ec/handle/28000/3132 eng restrictedAccess pp. 225-242
institution SENESCYT
collection Repositorio SENESCYT
biblioteca Biblioteca Senescyt
language eng
format Artículos
topic PROPAGATION
FOUR-WAVE
MOLECULAR
SYSTEM
spellingShingle PROPAGATION
FOUR-WAVE
MOLECULAR
SYSTEM
Paz Rojas, Jos? Luis
Rodr?guez, Luis Gerardo
Propagation of the Four-Wave Mixing signal in a molecular system: stochastic considerations of the thermal bath
description This work studies the spatial propagation of the Four-Wave Mixing (FWM) signal of a molecular system (malachite green) with two electronic levels immersed in a thermal bath, under a perturbative treatment at all order in the pump field and to first order in the probe and signal fields. Using the Optical Stochastic Bloch Equations OSBE, we present three approximations, two of them with analytical solutions and the third with a numerical approach, where the effects of the variation of pump intensity through the path optical are considered. We compare these results with the analogous in absence of the thermal reservoir. The stochastic effects induced by the solvent, due to the experimental conditions as relaxation times, chemical concentration of the solution and optical frequencies of the fields, diminishes the intensity responses compared with the same in absence of the bath
author Paz Rojas, Jos? Luis
Rodr?guez, Luis Gerardo
author_facet Paz Rojas, Jos? Luis
Rodr?guez, Luis Gerardo
author_sort Paz Rojas, Jos? Luis
title Propagation of the Four-Wave Mixing signal in a molecular system: stochastic considerations of the thermal bath
title_short Propagation of the Four-Wave Mixing signal in a molecular system: stochastic considerations of the thermal bath
title_full Propagation of the Four-Wave Mixing signal in a molecular system: stochastic considerations of the thermal bath
title_fullStr Propagation of the Four-Wave Mixing signal in a molecular system: stochastic considerations of the thermal bath
title_full_unstemmed Propagation of the Four-Wave Mixing signal in a molecular system: stochastic considerations of the thermal bath
title_sort propagation of the four-wave mixing signal in a molecular system: stochastic considerations of the thermal bath
publishDate 2016
url http://repositorio.educacionsuperior.gob.ec/handle/28000/3132
_version_ 1634995111423115264
score 11,871979