倒置泄漏辐射显微术用于测量由具有假手性的等离子体超表面引起的非互易性
Inverted Leakage Radiation Microscopy for measurement of nonreciprocity induced by a plasmonic metasurface with false chirality
- Ariel University（阿里埃尔大学）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
本文通过倒置泄漏辐射显微术实验检测等离子体超表面的非互易性，揭示其与假手性相关，并利用干涉图样的拓扑顺序确定方向，提供紧凑通用的检测方法。
AI中文摘要：
当光以相反方向穿过一个系统时，若遇到不同的光学经历，则该系统具有非互易性。这一效应是多种应用的基础，包括信号处理、噪声抑制、单向传播和传感。在此，我们实验演示了等离子体超表面中非互易性的检测以及确定其方向的方法。我们使用倒置泄漏辐射显微装置表明，非互易性与介质的假手性相关。该装置相当于经典萨格纳克环，在像平面提供干涉图样。通过检查所得图像中的拓扑顺序来检测非互易性。我们的系统代表了一种紧凑且通用的方法来检测等离子体中的假手性，并暗示了在纳米光子学、化学和应用物理学中多种潜在的应用领域。
英文摘要：
A system has a nonreciprocity when the light propagating through it in opposite directions encounters different optical adventures. This effect lies in the origin of various applications, including signal processing, noise reduction, unidirectional propagation, and sensing. Here, we experimentally demonstrate the detection of nonreciprocity in plasmonic metasurfaces and a method to determine its direction. We use the Inverted Leakage Radiation Microscopy setup to show that the non- reciprocity is linked to a false chirality of the medium. The setup behaves as an equivalent of the classical Sagnac loop providing an interference pattern at the image plane. The non-reciprocity is then detected by examining the topological order of the resulting image. Our system represents a compact and versatile method to detect false chirality in plasmonics and suggests a variety of potential areas of implementation in nanophotonics, chemistry and applied physics.
