基于超振荡光的二维超分辨率计量学
Yu Wang1, Eng Aik Chan2, Carolina Rendón-Barraza2
1Optoelectronics Research Centre & Centre for Photonic Metamaterials, University of Southampton, Southampton, SO17 1BJ, United Kingdom.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|August 5, 2024
概括
一种新的光学计量技术使用具有相异常的超振荡光来精确测量2D纳米结构. 这种无标签的方法超过了先进的半导体制造和材料表征的衍射极限.
科学领域:
- 光学和光子学 在光学和光子学.
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
背景情况:
- 半导体行业要求为紧,复杂的设备提供先进的计量技术.
- 目前的光学计量学正在为二维子波长结构的纳米分辨率而苦苦扎.
- 无标签,实时表征对于质量控制至关重要.
研究的目的:
- 引入用于2D纳米结构特性的一次性,无标签的光学计量技术.
- 证明一种方法可以克服衍射极限.
- 提高科学研究和工业的计量学能力.
主要方法:
- 使用具有相位奇点的拓结构超振荡光.
- 使用神经网络处理纳米结构图像.
- 将常规照明与结构光进行比较,以获取信息.
主要成果:
- 实现了实验测量的准确性,随机统计误差为18nm (λ/27).
- 模拟显示了6nm (λ/81) 精度的潜力.
- 通过结构光来显著改善对象信息检索.
结论:
- 开发的计量学超越了纳米尺度成像的常规衍射极限.
- 这种非侵入性技术在智能制造和先进材料方面提供了新的应用.
- 能够精确地表征2D纳米结构以进行质量控制.
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