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

Authors :
Nguyen Thi Thu Hien
Nguyen Linh Dan
Nguyen Huy Bang
Dinh Xuan Khoa
Nguyen Van Phu
Nguyen Thi Lan Anh
Mai Thi Thu Huong
Luong Thi Cam Nhung
Tran Thi Truc Linh
Le Thi Thuy
Nguyen Thi Yen Chau
Le Nguyen Mai Anh
Le Van Doai
Source :
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Publication Year :
2024
Publisher :
Nature Portfolio, 2024.

Abstract

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.

Subjects

Subjects :
Medicine
Science

Details

Language :
English
ISSN :
20452322
Volume :
14
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Scientific Reports
Publication Type :
Academic Journal
Accession number :
edsdoj.005cdb6ecb894b6b9b434ad9b72609ef
Document Type :
article
Full Text :
https://doi.org/10.1038/s41598-024-68891-w