کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5429869 1397374 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Absorptive and dispersive optical profiles in fluctuating environments: A stochastic model
موضوعات مرتبط
مهندسی و علوم پایه شیمی طیف سنجی
پیش نمایش صفحه اول مقاله
Absorptive and dispersive optical profiles in fluctuating environments: A stochastic model
چکیده انگلیسی

In this study, we determined the absorptive and dispersive optical profiles of a molecular system coupled with a thermal bath. Solvent effects were explicitly considered by modelling the non-radiative interaction with the solute as a random variable. The optical stochastical Bloch equations (OSBE) were solved using a time-ordered cumulant expansion with white noise as a correlation function. We found a solution for the Fourier component of coherence at the third order of perturbation for the nonlinear Four-wave mixing signal and produced analytical expressions for the optical responses of the system. Finally, we examined the behaviour of these properties with respect to the noise parameter, frequency detuning of the dynamic perturbation, and relaxation times.

Research highlights► Frequency fluctuations induced by the solvent are described stochastically. ► Nonlinear optical properties are more sensitive to the transversal relaxation time. ► Noise parameter is related to the solute-solvent coupling. ► As the noise parameter increased, nonlinear optical properties weakened.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 112, Issue 1, January 2011, Pages 100-108
نویسندگان
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