Observation of ultraslow optical solitons and vortex solitons in a room-temperature atomic gas via electromagnetically induced transparency

Hongqiao Zhang, Zhaohui Li, Yurong Wang, Chao Hang and Guang Wu

Chaos, Solitons & Fractals, 2025, vol. 192, issue C

Abstract: We report an experimental observation on the ultraslow optical solitons (USOSs) and vortex solitons (VSs) in a room-temperature, highly resonant atomic system via the electromagnetically-induced transparency. We show that when the input power of a probe laser exceeds a threshold, the probe beam can form USOSs and VSs, whose wave shapes are nearly invariant during propagation due to the exact balance between the transversal diffraction and self-focusing Kerr nonlinearity. We also show that optical solitons and VSs have an ultraslow propagation velocity of 10−5c (with c the speed of light in vacuum) and can be generated at a low light power of several microwatts. In addition, we provide theoretical analysis and carry out direct simulations, which agree well with the experimental results. Our findings pave the way for the generation of USOSs and VSs in room-temperature atomic systems and are useful for various applications in optical information processing and transmission.

Keywords: Ultraslow optical solitons; Vortex solitons; Electromagnetically induced transparency (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960077925000712
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:192:y:2025:i:c:s0960077925000712

DOI: 10.1016/j.chaos.2025.116058

Access Statistics for this article

Chaos, Solitons & Fractals is currently edited by Stefano Boccaletti and Stelios Bekiros

More articles in Chaos, Solitons & Fractals from Elsevier
Bibliographic data for series maintained by Thayer, Thomas R. ().