Xinji Zeng

Storage and retrieval of optical skyrmions with topological characteristics

Jinwen Wang, Xin Yang, Yun Chen, Zhujun Ye et autres

Optical skyrmions are topological structures of light whose defining property, the skyrmion number, is robust against perturbations. This makes them attractive for applications in quantum information storage, where resilience to decoherence is paramount. However, their preservation during coherent storage remains unexplored. We …

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Control of optical skyrmionic textures via the Pancharatnam-Berry phase

Lujia Shi, Xinji Zeng, Jinwen Wang, Zheng Fu et autres

Skyrmions are topological quasiparticles characterized by nontrivial topological textures. The manipulation of topological textures has attracted plenty of attention in recent years. In this study we demonstrate a geometric-phase-based method for dynamically controlling optical skyrmionic textures. By introducing the Pancharatnam-Berry phase through …

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Tailoring Ultra‐High‐Order Optical Skyrmions

Xinji Zeng, Jing Fang, Haijun Wu, Jinwen Wang et autres

Abstract As quasiparticles with topological spin textures, skyrmions have drawn considerable interest from the condensed matter and structured wave communities, offering potential for next‐generation high‐density, robust information technologies. Nevertheless, generating high‐order skyrmions remains a significant challenge, as they have not been reliably …

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Generation of ring-shaped optical skyrmion with a high topological number

Jinwen Wang, Xinji Zeng, Kaixuan Ren, Zhujun Ye et autres

Optical skyrmions, unlike their magnetic counterpart, can be generated and detected with a wide variety of topological structures, as they are missing constraints due to energy minimization and available material symmetries. Optical skyrmions are most commonly constructed as superpositions of different propagation-invariant …

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Tailoring ultra-high-order optical skyrmions

Xinji Zeng, Jing Fang, Haijun Wu, Jinwen Wang et autres

Skyrmions, as quasiparticles with topological spin textures, has recently garnered great attention for both condensed matter and structured wave communities, promising next-generation large-density robust information technologies. However, a big challenge to this end is that the generation of high-order skyrmions is elusive …

Multiplexed optical storage and efficient demultiplexing of orbital angular momentum states in hot atoms

Xin Yang, Hong Chang, Jianyi Xu, Xinji Zeng et autres

High-performance multiplexed quantum storage can reduce the number of storage units required for quantum communication and enhance quantum information processing. In this paper, we demonstrate the storage of orbital angular momentum (OAM)-multiplexed beams in rubidium vapor and retrieve the optical modes using …

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Spatial coherent manipulation of Bessel-like vector vortex beam in atomic vapor

Xinji Zeng, Zhuang Li, Xin Yang, Jianyi Xu et autres

Abstract The interaction between vector beams and atoms under a weak magnetic field could induce spatially dependent electromagnetically induced transparency (EIT). Based on such a coherence effect, we propose a method for manipulating vector beams carrying spiral varying phases in hot rubidium …

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SULFUR IX TO XIII SPECTRAL MEASURMENTS BETWEEN 170 AND 500 Å

Zhihu Yang, Shu‐Shan Du, Xinji Zeng, Hai Chang et autres

This paper reports laboratory measurements of the spectrum of highly ionized sulfur. The spectrum of S ix –S xiii has been observed in the wavelength range 170–500 Å. A total of 54 lines have been measured. Forty-two of them have been classified …

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Spectra for electric-dipole Δn = 0 transitions in highly ionized sulfur ions

Zheng Yang, Shu‐Shan Du, Xinji Zeng, Hai Chang et autres

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Extended line identification for Ne-like Ge XXIII

Shu‐Shan Du, Xinji Zeng, Jian-Xing Li, Liyang Jiang et autres

We report an investigation of the 2p 5 3s, 3p and 3d configurations of Ne-like Ge XXIII, based on beam-foil spectroscopy. Several new 3s-3p and 3p-3d transitions have been observed and the data are compared with earlier results.

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Spectrum and Energy Levels of Mg-like Br XXIV

Xinji Zeng, Shu‐Shan Du, Jian-Xing Li, Liyang Jiang et autres

The spectrum of Mg-like Br, Br XXIV, was investigated by means of the beam-foil technique. Bromine ions of 90 and 130 MeV energy from the HI-13 tandem accelerator at the China Institute of Atomic Energy were used, and the wavelength region 130–290 …

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Analysis of the 2p53s, 3p and 3d Configurations of Ne-like Br XXVI

C Jupén, I. Martinson, Xinji Zeng, Shu‐Shan Du et autres

We report a study of the 2p 5 3s, 3p and 3d configurations of Ne-like Br XXVI, by means of beam foil spectroscopy. In the region 100 – 300 Å more than 20 Br XXVI lines were identified, 5 of which were …

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