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基于连续体中的等离子子半结合状态的尼酸盐超表面的电光空间光调节器

Yao Ju¹, Hao Zhou², Yulei Huang²

¹College of Physics, Sichuan University, Chengdu 610064, China.

|August 11, 2023

概括

这项研究引入了一种新的尼酸超表面光调节器. 它展示了用于先进光学应用的高速度和信号对噪声比的光调节的动态控制.

科学领域:

光子学和元材料研究
光电学是指光电子产品.
纳米光子学纳米光子学

背景情况:

超表面为高速成像和光学互连等应用提供了多功能光控制.
酸 (LiNbO3) 由于其电光特性,是光电子学中的关键材料.

研究的目的:

提出和演示一个自由空间光调节器,利用酸上的金格子元表面.
通过利用连续 (quasi-BIC) 和引导模式共振 (GMR) 中的准束状态来实现光的动态调制.

主要方法:

在尼酸盐基板上制造金格子元表面.
在连续 (quasi-BIC) 和引导模式共振 (GMR) 现象中利用准束状态.
调节等离子子准BIC和GMR,通过控制 incidente光的极化.

主要成果:

实现了从1480nm到1620nm的工作波长范围.
在共振波长的最大共振深度约为51%.
动态调制速度高达190MHz,65MHz的信号噪声比 (SNR) 为49dB.
在1510 nm的插入损失为-2.8 dB.

结论:

拟议的酸超表面允许有效和动态的自由空间光调节.
在没有几何变化的情况下,证明了准BIC和GMR的极化控制调制.
该设备显示出近红外成像,光束转向和自由空间光学通信的巨大潜力.

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