학술논문
Study of the absorptive and dispersive responses of molecular systems under stochastic considerations.
Document Type
Article
Author
Source
Subject
*ABSORPTIVE modulators
*DISPERSIVE interactions
*BLOCH equations
*ELECTROMAGNETIC devices
*DIPOLE-dipole interactions
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Language
ISSN
0218-8635
Abstract
Absorptive and dispersive nonlinear optical properties have been studied considering a two-level molecular system with permanent dipole moments immersed in a thermal reservoir interacting with a classical electromagnetic field. Our model is based in a stochastic description, where the system--solvent interaction induces random shifts in the Bohr frequency (ω0) that transforms ω0 into a stochastic variable ξ(t). Our results show that it is necessary to neglect the rotating-wave approximation in order to measure the effect of the permanent dipole moments. The two-photon transitions over those with one-photon are favored when the permanent dipole moments are considered. [ABSTRACT FROM AUTHOR]