通过三角函数生成同心完美涡流束的宽带多功能元表面

IF 2.8 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Express Pub Date : 2023-12-11 DOI:10.1364/ome.510015

Muhammad Danial Shafqat, Nasir Mahmood, Jehan Akbar, Muhammad Zubair, Yehia Massoud, and Muhammad Qasim Mehmood

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引用次数: 0

摘要

完美漩涡（PV）光束表现出拓扑电荷敏感的环形强度分布，是光通信和量子光学领域取得重大进展的一个引人注目的热点，在满足未来光通信系统的要求方面具有巨大潜力。最近开发的平面光子器件具有前所未有的微米级复杂波前整形能力；然而，目前光伏光束产生平面光子器件有限的工作带宽和突然发散的光行为阻碍了它们在实际系统中的应用。这项工作展示了一个单细胞驱动的宽带平面光子学平台，以实现可见光谱的非衍射型光伏光束。这些光伏光束在不同拓扑电荷下呈现出长传播恒定大小的甜甜圈，并表现出预期的宽带响应。通过对能够产生非衍射型光伏光束的多个元器件进行数值研究，验证了所提出的概念。所提出的光子学平台可为机器视觉等实际应用带来巨大进步。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Broadband multifunctional metasurfaces for concentric perfect vortex beam generation via trigonometric functions

Perfect vortex (PV) beams exhibiting topological charge-insensitive annular intensity distribution appear as a striking hotspot for significant advances in optical communication and quantum optics and have great potential to fulfill the requirements of futuristic optical communication systems. The recently developed planar photonics devices possessed an unprecedented ability for complex wavefront shaping at the micron scale; however, the limited working bandwidth and abruptly diverging light behavior of the current PV beam-generating planar photonics devices roadblock their applicability in practical systems. This work demonstrates a single-cell driven broadband planar photonics platform to realize the nondiffracting-type PV beams for the visible spectrum. These PV beams exhibit long propagating constant-sized doughnuts for different topological charges and exhibit expected broadband response. The proposed concept is verified by numerically studying multiple meta-devices capable of generating nondiffracting-type PV beams. The presented photonics platform may bring considerable advances in real-life applications like machine vision.

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来源期刊

Optical Materials Express MATERIALS SCIENCE, MULTIDISCIPLINARY-OPTICS

CiteScore

5.50

自引率

3.60%

发文量

377

审稿时长

1.5 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optical Materials Express (OMEx), OSA''s open-access, rapid-review journal, primarily emphasizes advances in both conventional and novel optical materials, their properties, theory and modeling, synthesis and fabrication approaches for optics and photonics; how such materials contribute to novel optical behavior; and how they enable new or improved optical devices. The journal covers a full range of topics, including, but not limited to: Artificially engineered optical structures Biomaterials Optical detector materials Optical storage media Materials for integrated optics Nonlinear optical materials Laser materials Metamaterials Nanomaterials Organics and polymers Soft materials IR materials Materials for fiber optics Hybrid technologies Materials for quantum photonics Optical Materials Express considers original research articles, feature issue contributions, invited reviews, and comments on published articles. The Journal also publishes occasional short, timely opinion articles from experts and thought-leaders in the field on current or emerging topic areas that are generating significant interest.