Sparse-Aperture Quasi-Achromatic Spintronic Terahertz Emitter Enabled by Binary-Phase Metasurface and Multi-Spectral Intensity Optimization

IF 6.8 2区物理与天体物理 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nanophotonics Pub Date : 2026-10-08 DOI:10.1002/nap2.70317

Wenkai Qiu,Yongshan Liu,Yunqing Jiang,Yong Xu,Sylvain Eimer,Xiaoqiang Zhang,Weisheng Zhao

引用次数: 0

Abstract

We propose a sparse-aperture shared-aperture design with multispectral intensity optimization, enabling a Pt/W binary-phase metasurface directly integrated with a spintronic emitter. The device achieves quasi-achromatic focusing across 1.0–1.5 THz, with intensity fluctuation below 33% and edge preservation above 0.68.

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基于二相超表面和多光谱强度优化的稀疏孔径准消色差自旋电子太赫兹发射器

我们提出了一种多光谱强度优化的稀疏孔径共享孔径设计，使Pt/W二相超表面与自旋电子发射器直接集成。该器件在1.0 ~ 1.5 THz范围内实现了准消色差聚焦，强度波动小于33%，边缘保持在0.68以上。

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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来源期刊

Nanophotonics NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

13.50

自引率

6.70%

发文量

358

审稿时长

7 weeks

期刊介绍： Nanophotonics, published in collaboration with Sciencewise, is a prestigious journal that showcases recent international research results, notable advancements in the field, and innovative applications. It is regarded as one of the leading publications in the realm of nanophotonics and encompasses a range of article types including research articles, selectively invited reviews, letters, and perspectives. The journal specifically delves into the study of photon interaction with nano-structures, such as carbon nano-tubes, nano metal particles, nano crystals, semiconductor nano dots, photonic crystals, tissue, and DNA. It offers comprehensive coverage of the most up-to-date discoveries, making it an essential resource for physicists, engineers, and material scientists.