通过非线性干涉测量通过元表面对上转换光的全光自由空间路由
Agostino Di Francescantonio1, Attilio Zilli1, Davide Rocco2
1Physics Department, Politecnico di Milano, Milan, Italy.
Nature nanotechnology
|December 5, 2023
概括
我们使用非线性元表面演示光的全光学路由. 通过控制光对光相互作用,我们实现了高转换电信光子的高达90%的调制效率,从而实现了高速光信号处理.
科学领域:
- 光学和光学工程的光学和光学工程.
- 非线性光学是一种非线性光学.
- 超材料科学 超材料科学
背景情况:
- 全光学调制对于高速信息处理至关重要.
- 超表面为先进的光管理提供超薄平台.
- 非线性光学过程使得光对光的操纵在元表面上成为可能.
研究的目的:
- 为了证明电信光子的全光学路由向上转换到可见范围使用非线性周期性 metasurface.
- 通过操纵非线性光学过程,实现对向上转换的光子路由的有效控制.
主要方法:
- 使用非线性周期性超表面进行光操纵.
- 在第三和生成和总频生成过程之间使用干扰.
- 调节束的相对相位和偏振,以控制信号路由.
主要成果:
- 实现了对上转换的电信光子的全光学路由,其调制效率高达90%.
- 在超表面的衍射顺序中证明了上转换信号的路由.
- 展示了高速自由空间全光学路由的潜力.
结论:
- 开发的非线性超表面使得高效的全光学路由可实现上转换的光子.
- 这种技术增强了光学干扰度,具有非线性光向上转换和相位灵敏度.
- 潜在的应用包括先进的成像,生物传感和高速光学信号处理.
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