DataVXAdvanced Optical MaterialsPaper
journal article·2024-09

Optical Vortices Generation via a Self‐Assembly Photonic Crystal Slab

Wenjie Zhang, Jiao Chu, Ruhuan Deng, Xinhao Wang, Tongyu Li, Wenzhe Liu, Jiajun Wang, Xiaohan Liu, Lei Shi

Advanced Optical Materials· Volume 12· Issue 25
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Source abstract

Abstract

Abstract Optical vortices (OVs), as common phenomena that widely exist in nature, have attracted interest both in fundamental science and applications. Recently, generating OVs by using polarization vortices in the momentum space is demonstrated. This method eliminates the need for precise optical center alignment, which relies on periodic structures. The micro‐spheres self‐assembly method is known as an inexpensive and straightforward means to fabricate periodic structures. Here, self‐assembly photonic crystal (SA‐PhC) slabs are proposed that can be used to generate OVs. With both simulations and experiments, the OVs generation via SA‐PhC slabs is investigated. The designed SA‐PhC slab is fabricated. The momentum‐space polarization vortex of the SA‐PhC slab is directly observed. The field shape and phase distribution of the generated OVs are measured. The work can broaden the applications of SA‐PhC and the generation methods of OVs.
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Research context

OpenAlex topics: Orbital Angular Momentum in Optics · Photonic Crystals and Applications · Plasmonic and Surface Plasmon Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Surface Physics Key Laboratory of Micro‐ and Nano‐Photonic Structures (Ministry of Education) and Department of Physics Fudan University Shanghai 200433 China

Department of Physics The Hong Kong University of Science and Technology Hong Kong 999077 China

Institute for Nanoelectronic devices and Quantum computing Fudan University Shanghai 200438 China

Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 China

Shanghai Research Center for Quantum Sciences Shanghai 201315 China

Funding

National Natural Science Foundation of China · National Key Research and Development Program of China · Science and Technology Commission of Shanghai Municipality · China Postdoctoral Science Foundation

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