Highly localized linear array of optical rings with multiple tunable degrees of freedom

IF 2.2 3区物理与天体物理 Q2 OPTICS

Optics Communications Pub Date : 2025-03-06 DOI:10.1016/j.optcom.2025.131714

Yongxi Zeng , Yanzhong Yu , Musheng Chen , Pinghui Wu , Shiyang Zheng , Zhonglong Wu , Shunda Lin , Guangping Yao , Qiwen Zhan

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引用次数: 0

Abstract

By combining time-reversal techniques and antenna radiation theory, we present a simplified approach to generate a novel highly localized linear array of optical rings with multiple tunable degrees of freedom, without complex optimization of the pupil field. Utilizing the radiation field of a magnetic current line source (MLS) with a periodic cosine-squared tapered distribution, we inversely obtain the pupil field required to generate the desired focal field. The characteristics of the focal field, after focusing by a 4π focusing system, are evaluated through vector Debye diffraction integral theory. The results reveal that the focal field forms a linear array of identical optical rings aligned along the direction of the MLS. Each ring exhibits a purely azimuthal polarization with only azimuthal optical field components. The number of rings is determined by the periodic parameters of the magnetic current, while the position and spacing of the rings depend on both the length and periodic parameters of the MLS. The highly localized, tunable linear array of optical rings holds significant potential for applications in optical parallel processing, multi-point particle trapping, and transportation.

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来源期刊

Optics Communications 物理-光学

CiteScore

5.10

自引率

8.30%

发文量

681

审稿时长

38 days

期刊介绍： Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.