使用MEMS镜像激光差异共焦显微镜对微观尺度表面进行动态3D分析
Qingjiu Chen1, Donghai Yang1, Feifei Wang2
1Department of Mechanical Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong.
Scientific reports
|July 17, 2025
概括
这项研究引入了一种新型的高速显微镜,用于实时3D微表面造型. 它使动态表面的纳米级分辨率成像成为可能,克服了以前在速度和精度方面的限制.
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
- 显微镜的使用方法
背景情况:
- 现有的3D微表面造型技术难以以高分辨率的动态样本实时成像.
- 以纳米级3D空间分辨率对快速变化或移动的表面进行剖析是一个重大挑战.
研究的目的:
- 为了演示一个高速的MEMS基于镜子的激光差异共焦显微镜,用于动态的3D微表面造型.
- 克服当前在高分辨率的动态表面成像方法的局限性.
主要方法:
- 使用一个MEMS镜子进行2D扫描 (1200x650像素,140x90微米FOV) 以每秒80的速度.
- 采用激光差异对焦检测用于高分辨率配置文件.
- 实现了目标-空间远程中心激光投射,以实现均的轴响应.
主要成果:
- 实现了25nm的轴分辨率.
- 启用实时3D微/纳米尺度对动态表面的定位,每秒80.
- 消除了对运动阶段的需求,显著增加了成像吞吐量.
结论:
- 开发的系统提供了前所未有的实时3D配置动态微尺度表面的纳米级轴分辨率.
- 为精密微/纳米制造的工艺开发和质量控制提供了新的见解.
- 代表了动态表面分析成像吞吐量的突破.
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