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arXiv 2402.11491physics.optics
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在三级共振介质中由极短非重叠光脉冲产生的电磁感应光栅

Electromagnetically induced gratings created by extremely short non-overlapping pulses of light in a three-level resonant mediu

R. Arkhipov

AI总结:

本文基于Maxwell-Bloch方程组的数值解,证明在三级共振介质中无需先前研究的近似即可生成和控制布居光栅,且额外能级不破坏该效应,扩展了超短脉冲超快控制量子系统的适用性。

摘要:

在固定光谱范围内,单周期和半周期电磁脉冲具有最短的持续时间。半周期脉冲是用于量子系统超快控制的有前景的工具。此前,已经证明了使用单周期和阿秒半周期脉冲序列来生成和超快控制光感应布居差光栅的可能性。然而,此类研究是在不同的近似下进行的。例如,当介质在两能级近似下进行建模时。本文基于Maxwell-Bloch方程组的数值解,表明可以在三级介质中生成和控制布居光栅,而无需使用先前研究中所用的近似。结果表明,考虑介质的额外能级并不会导致破坏生成此类光栅的效应。这扩展了先前结果的适用性。

英文摘要:

In a fixed spectral range, single- and half-cycle electromagnetic pulses have the shortest duration. Half-cycle pulses are promising tools for ultrafast control of quantum systems. Previously, the possibility of using a sequence of single- and half-cycle attosecond pulses to generate and ultrafast control light-induced population difference gratings has been demonstrated. However, such studies have been carried out using different approximations. For example, when the medium is modelled in the two-level approximation. In this paper, based on the numerical solution of the system of Maxwell-Bloch equations, it is shown that it is possible to generate and control population gratings in a three-level medium without using the approximations used in previous studies. It is shown that taking into account the additional level of the medium does not lead to a violation of the effect of generating such gratings. This extends the applicability of previous results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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