Three-Channel Wavefront Shaping Using Non-Interleaved Spin-Multiplexed Plasmonic Metasurfaces.

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Tác giả: Ziru Cai, Zhiming Chen, Yadong Deng, Fei Ding, Yingtao Ding, Xingling Pan, Ziwei Zheng

Ngôn ngữ: eng

Ký hiệu phân loại: 621.374 Instruments for measuring specific electrical quantities

Thông tin xuất bản: Germany : Advanced science (Weinheim, Baden-Wurttemberg, Germany) , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 199096

Metasurfaces have garnered significant attention for their ability to manipulate light waves with multifunctional capabilities. Integrating independent wavefront controls within a single metasurface is essential to meet the growing demand for high-capacity, flat photonic devices. In this work, a versatile non-interleaved plasmonic metasurface platform utilizing quarter-wave plate meta-atoms for independent and simultaneous phase modulation of both co- and cross-polarized circularly polarized waves with subwavelength pixels, achieved by merging resonance and Pancharatnam-Berry phases is presented. We propose and experimentally validate three proof-of-concept designs operating in the near-infrared range: a beam deflector with three distinct reflection angles, a focusing metalens with three focal lengths, and a vortex beam generator with tunable topological charges. This plasmonic metasurface platform paves the way for customizable, multi-channel functionalities, advancing the development of integrated photonic devices with enhanced versatility.
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