原子态制备是实现EIT慢光工程的有效控制手段

IF 3.1 3区物理与天体物理 Q2 Engineering

Optik Pub Date : 2025-06-10 DOI:10.1016/j.ijleo.2025.172456

Zahra Heydarinasab, Mohammad Karami, Farrokh Sarreshtedari

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引用次数: 0

摘要

从理论上研究了初始态制备对⁸⁷Rb中电磁感应透明（EIT）和慢光传播的影响。通过求解8 × 8密度矩阵的Liouville方程，我们证明了使用特殊的偏振光束来制备状态和工程化塞曼亚能级之间的种群分布，可以显著降低群速度。有趣的是，通过平衡左右圆偏振共振光的原子样品初始泵浦，可以使慢光的群速度降低20 dB以上。

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Atomic state preparation as an effective control tool for engineering the EIT based slow light

The influence of the initial state preparation on electromagnetically induced transparency (EIT) and slow light propagation in ⁸⁷Rb is theoretically investigated. By solving the Liouville equation for an 8 × 8 density matrix, we demonstrate that using special polarized optical beams for state preparation and engineering the population distribution among Zeeman sublevels, a significant reduction in group velocity could be achieved. The results interestingly show that the group velocity of slow light can be reduced by more than 20 dB through initial pumping of the atomic sample with balanced right- and left-circularly polarized resonant light.

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来源期刊

Optik 物理-光学

CiteScore

6.90

自引率

12.90%

发文量

1471

审稿时长

46 days

期刊介绍： Optik publishes articles on all subjects related to light and electron optics and offers a survey on the state of research and technical development within the following fields: Optics: -Optics design, geometrical and beam optics, wave optics- Optical and micro-optical components, diffractive optics, devices and systems- Photoelectric and optoelectronic devices- Optical properties of materials, nonlinear optics, wave propagation and transmission in homogeneous and inhomogeneous materials- Information optics, image formation and processing, holographic techniques, microscopes and spectrometer techniques, and image analysis- Optical testing and measuring techniques- Optical communication and computing- Physiological optics- As well as other related topics.