Significant Non-Reciprocal Transmission Achieved by Combining Nonlinear Near-Zero Index Materials with Bound States in the Continuum

IF 9.8 1区 物理与天体物理 Q1 OPTICS
Dayu Bi, Zhiwei Guo, Qiang Wang, Qian Wei, Jiaju Wu, Yong Sun, Yuguang Chen, Yaping Yang, Haitao Jiang, Hong Chen
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引用次数: 0

Abstract

For many modern photonics applications, significant nonlinear optical interactions are crucial. However, achieving this typically demands powerful laser sources and extended interaction area because most natural materials exhibit extremely weak optical nonlinearities. Hence, integrating nonlinear optics into novel nanophotonics devices poses a challenge. In this work, an asymmetrical optical nonlinear metasurface is proposed that combines effective zero-index media with bound states in the continuum (BIC). This scheme enables us to achieve a huge non-reciprocal intensity range of ≈7.1, leveraging significantly enhanced optical nonlinear effects. The high-Q characteristics of quasi-BIC within the zero-index background greatly enhance light-matter interactions and reduce operational power requirements. The non-reciprocal metasurface relies on a straightforward set of material requirements and fabrication processes, making it a highly versatile option for various applications in optical communication, light detection, signal processing.

Abstract Image

结合非线性近零折射率材料在连续体中的束缚态实现显著非互易传输
对于许多现代光子学应用,重要的非线性光相互作用是至关重要的。然而,实现这一目标通常需要强大的激光源和扩大的相互作用面积,因为大多数天然材料表现出极其微弱的光学非线性。因此,将非线性光学集成到新型纳米光子器件中是一个挑战。本文提出了一种结合有效零折射率介质和连续介质束缚态的非对称光学非线性超表面。该方案使我们能够获得≈7.1的巨大非倒易强度范围,从而显著增强了光学非线性效应。准bic在零折射率背景下的高q特性大大增强了光-物质相互作用,降低了运行功率要求。非互易超表面依赖于一套简单的材料要求和制造工艺,使其成为光通信,光检测,信号处理等各种应用的高度通用的选择。
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来源期刊
CiteScore
14.20
自引率
5.50%
发文量
314
审稿时长
2 months
期刊介绍: Laser & Photonics Reviews is a reputable journal that publishes high-quality Reviews, original Research Articles, and Perspectives in the field of photonics and optics. It covers both theoretical and experimental aspects, including recent groundbreaking research, specific advancements, and innovative applications. As evidence of its impact and recognition, Laser & Photonics Reviews boasts a remarkable 2022 Impact Factor of 11.0, according to the Journal Citation Reports from Clarivate Analytics (2023). Moreover, it holds impressive rankings in the InCites Journal Citation Reports: in 2021, it was ranked 6th out of 101 in the field of Optics, 15th out of 161 in Applied Physics, and 12th out of 69 in Condensed Matter Physics. The journal uses the ISSN numbers 1863-8880 for print and 1863-8899 for online publications.
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