Real-imaginary spectrum decomposition of the transparency spectra in microwave dressed Rydberg systems

Niu, Wenyu; Qin, Lu; Shi, Zeyun; Zhang, Yingying; Xia, Shiqiang; Feng, Xuejing; Wang, Qi; Liu, Jingxue; Zhao, Zhijun; Zhu, Zunlue; Li, Weibin; Zhao, Xingdong

Abstract

To distinguish the contributions of electromagnetically induced transparency (EIT) and Autler-Townes splitting (ATS) in their applications in precision laser spectroscopy, we propose a real-imaginary spectrum decomposition method to investigate the transparency spectra in a four-level microwave (MW) dressed Rydberg system. We show that the opening transparency windows in the absorption spectra of probe field is a prominent character by EIT, EIT-ATS crossover, and ATS when the MW field is turned off and the intensity of the control field is adjusted. When the MW field is turned on and gradually increased, the EIT is destroyed and disappears. In addition, the most prominent characters that open a transparency window are the EIT-ATS crossover and the ATS. Then, if we further increase the intensity of the MW field, we find that the transparency windows open mainly due to the ATS. Compared to the previous considerations of this issue, which were limited to three-level systems, our four-level scheme reported here is useful for understanding the features of quantum interference in multilevel atomic systems, and has potential applications to study enhanced sensitivity, measurement spectroscopic, quantum processing, quantum communication, and transmission.

Citation

Niu, W., Qin, L., Shi, Z., Zhang, Y., Xia, S., Feng, X., …Zhao, X. (2024). Real-imaginary spectrum decomposition of the transparency spectra in microwave dressed Rydberg systems. Optics Express, 32(12), 21374-21388. https://doi.org/10.1364/oe.520789

• Journal Article Type: Article
• Acceptance Date: May 14, 2024
• Online Publication Date: May 28, 2024
• Publication Date: Jun 3, 2024
• Deposit Date: Jun 1, 2024
• Publicly Available Date: Jun 4, 2024
• Journal: Optics Express
• Electronic ISSN: 1094-4087
• Publisher: Optical Society of America
• Peer Reviewed: Peer Reviewed
• Volume: 32
• Issue: 12
• Pages: 21374-21388
• DOI: https://doi.org/10.1364/oe.520789
• Public URL: https://nottingham-repository.worktribe.com/output/35445631
• Publisher URL: https://opg.optica.org/oe/fulltext.cfm?uri=oe-32-12-21374&id=551199
• Additional Information: This article is maintained by: Optica Publishing Group; Crossref DOI link to publisher maintained version: https://doi.org/10.1364/OE.520789; Article type: research-article; Similarity check: Screened by Similarity Check; Peer reviewed: Yes; Review process: Single blind; Received: 2 February 2024; Accepted: 14 May 2024; Published: 28 May 2024; Copyright: © 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement