Electromagnetically induced absorption and transparency in a ladder-type atomic system with different dressing mechanisms

IF 2.6 4区物理与天体物理 Q2 PHYSICS, APPLIED

International Journal of Modern Physics B Pub Date : 2024-03-02 DOI:10.1142/s0217979225500109

Hao-Wei Ti, Xiang-An Yan, Hao-Gong Liu, Xi-Xi Bai, Xiao-Rui Huang, Zhou Guo, Chen-Jie Wang, Dan-Dan Zhang, Xiaoxiang Han

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引用次数: 0

Abstract

In a Doppler-broadened ladder-type Rubidium atomic system $5 S_{1 / 2}$ – $5 P_{3 / 2}$ – $5 D_{5 / 2}$ , three-photon electromagnetically induced absorption (EIA) and transparency (EIT) in two schemes of two coupling lasers with different propagation directions are comprehensively studied. Two coupling fields are entangled tightly with each other and induce constructive interference such that we observe EIA as two coupling fields are counter-propagating. Two coupling fields are independent and cause destructive interference such that only enhanced EIT occurs when two coupling fields are co-propagating, although all of the Doppler-broadened atoms satisfy the condition for three-photon resonance. The experimental results are coincided with the numerically calculated spectra using the dressed perturbation method. The mechanisms of EIT and EIA could also be understood by the dressed-state pictures.

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具有不同修整机制的阶梯型原子系统中的电磁诱导吸收和透明度

在多普勒展宽的阶梯型铷原子系统 5S1/2-5P3/2-5D5/2 中，我们全面研究了在两个传播方向不同的耦合激光器的两种方案中的三光子电磁诱导吸收（EIA）和透明（EIT）。两个耦合场彼此紧密纠缠并产生建设性干扰，因此我们观察到两个耦合场反传播时的 EIA。两个耦合场是独立的，会产生破坏性干扰，因此只有当两个耦合场共传播时才会出现增强的 EIT，尽管所有多普勒展宽的原子都满足三光子共振的条件。实验结果与使用掺杂扰动法进行的光谱数值计算结果相吻合。EIT和EIA的机理也可以通过掺杂态图片来理解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Modern Physics B 物理-物理：凝聚态物理

CiteScore

3.70

自引率

11.80%

发文量

417

审稿时长

3.1 months

期刊介绍： Launched in 1987, the International Journal of Modern Physics B covers the most important aspects and the latest developments in Condensed Matter Physics, Statistical Physics, as well as Atomic, Molecular and Optical Physics. A strong emphasis is placed on topics of current interest, such as cold atoms and molecules, new topological materials and phases, and novel low dimensional materials. One unique feature of this journal is its review section which contains articles with permanent research value besides the state-of-the-art research work in the relevant subject areas.