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静态磁场下简并四能级原子介质中的双通道光学双稳性和多稳性

Two-channel optical bistability and multistability in a degenerate four-level atomic medium under a static magnetic field.

作者信息

Hien Nguyen Thi Thu, Dan Nguyen Linh, Bang Nguyen Huy, Khoa Dinh Xuan, Van Phu Nguyen, Anh Nguyen Thi Lan, Huong Mai Thi Thu, Nhung Luong Thi Cam, Linh Tran Thi Truc, Thuy Le Thi, Chau Nguyen Thi Yen, Anh Le Nguyen Mai, Van Doai Le

机构信息

Vinh University, 182 Le Duan Street, Vinh City, Vietnam.

Ho Chi Minh City University of Industry and Trade, Ho Chi Minh City, Vietnam.

出版信息

Sci Rep. 2024 Aug 16;14(1):19007. doi: 10.1038/s41598-024-68891-w.

DOI:10.1038/s41598-024-68891-w
PMID:39152137
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11329734/
Abstract

In this paper, we study the formation of optical bistability (OB) and optical multistability (OM) in a degenerate four-level atomic system by an external magnetic field that is excited by a probe laser field, a coupling laser field and a signal laser field. The coupling field can cause electromagnetically induced transparency (EIT) for the probe field in the atomic medium, while the signal field and/or external magnetic field can switch between single-EIT and two-EIT regimes. Based on these properties, OB and OM effects can be formed at two different frequency regions of the probe field (two channels). By adjusting the magnetic field or the intensity and the frequency of laser fields, the threshold intensity and the width of OB or OM can also be changed simply. The model can be useful for experimental observations and applications in modern photonic devices.

摘要

在本文中，我们研究了在简并四能级原子系统中，由探测激光场、耦合激光场和信号激光场激发的外磁场作用下光学双稳性（OB）和光学多稳性（OM）的形成。耦合场可在原子介质中引起探测场的电磁诱导透明（EIT），而信号场和/或外磁场可在单EIT和双EIT机制之间切换。基于这些特性，可在探测场的两个不同频率区域（两个通道）形成OB和OM效应。通过调节磁场或激光场的强度及频率，还可简便地改变OB或OM的阈值强度及宽度。该模型对现代光子器件的实验观测及应用可能有用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1ebf/11329734/6c4c7db0cc5e/41598_2024_68891_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1ebf/11329734/6c13592ea377/41598_2024_68891_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1ebf/11329734/5f6e0b00158f/41598_2024_68891_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1ebf/11329734/b2c95bffae42/41598_2024_68891_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1ebf/11329734/50bed2d10f4f/41598_2024_68891_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1ebf/11329734/dfe631f5d162/41598_2024_68891_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1ebf/11329734/15f1b5e5a165/41598_2024_68891_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1ebf/11329734/59e4c3e7f695/41598_2024_68891_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1ebf/11329734/6c4c7db0cc5e/41598_2024_68891_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1ebf/11329734/6c13592ea377/41598_2024_68891_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1ebf/11329734/5f6e0b00158f/41598_2024_68891_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1ebf/11329734/b2c95bffae42/41598_2024_68891_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1ebf/11329734/50bed2d10f4f/41598_2024_68891_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1ebf/11329734/dfe631f5d162/41598_2024_68891_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1ebf/11329734/15f1b5e5a165/41598_2024_68891_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1ebf/11329734/59e4c3e7f695/41598_2024_68891_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1ebf/11329734/6c4c7db0cc5e/41598_2024_68891_Fig8_HTML.jpg

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本文引用的文献

1
Optical switching and bistability in a degenerated two-level atomic medium under an external magnetic field.外磁场作用下简并二能级原子介质中的光学开关与双稳性
Appl Opt. 2019 Jun 1;58(16):4192-4199. doi: 10.1364/AO.58.004192.
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Observation of electromagnetically induced transparency.电磁诱导透明的观测
Phys Rev Lett. 1991 May 20;66(20):2593-2596. doi: 10.1103/PhysRevLett.66.2593.