在芯片上的元光学用于工程随意轨迹与纵向偏振变化变化
Yangyang Shi1, Shuai Wan1, Chenjie Dai1
1Electronic Information School, Wuhan University, Wuhan 430072, China.
Nano letters
|February 1, 2024
概括
研究人员创建了芯片上的元光学来精确控制光路径. 这种集成的超表面技术使任意光学轨迹成为可能,为先进的光子设备铺平了道路.
科学领域:
- 光子学和光学工程的工程.
- 超材料和纳米光子学
背景情况:
- 集成光子设备对于高性能,紧的系统至关重要.
- 在芯片上设计任意光学轨迹对基础物理学和新兴应用具有重要意义.
研究的目的:
- 实验证明芯片上的超表面用于可见光谱中的任意光学轨迹控制.
- 为了使引导波的成型成为预先定义的轨迹,如抛物线,高抛物线和共弦值.
主要方法:
- 将超表面集成到波导上,用于芯片上的光学控制.
- 使用横向向纵向相位转换来设计光学路径.
- 导向波的提取和成型到所需的轨迹.
主要成果:
- 在芯片上成功展示了任意光学轨迹工程 (抛物线,高抛物线,共弦值).
- 赋予预定义的极化状态与沿着工程轨迹的纵向变化.
- 实现无零级衍射干扰的轨迹,以获得更高的信号噪声比率.
结论:
- 在芯片上使用元表面的光学轨迹工程提供了微型化的集成可能性.
- 这项技术在复杂的光学操纵,先进的激光制造和显微镜成像方面具有潜在的应用.
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