暗场光散射显微镜,具有焦点稳定
Anna Peters1, Zhu Zhang1, Sanli Faez1
1Nanophotonics, Debye Institute for Nanomaterials Science, Utrecht University, 3584CC Utrecht, The Netherlands.
HardwareX
|May 30, 2023
概括
我们设计了一种可适应的倒置显微镜,用于暗场散射显微镜. 积极的反稳定了成像平面,用于精确的纳米粒子分析,使未来的多模式成像成为可能.
科学领域:
- 光学显微镜是一种光学显微镜.
- 纳米颗粒的特征表征
- 散射技术是一种散射技术.
背景情况:
- 开发多功能显微镜设置对于先进的材料和生物研究至关重要.
- 暗场显微镜为小型或弱吸收样本提供高对比度.
- 对成像条件的精确控制对于定量测量至关重要.
研究的目的:
- 介绍一个单镜头倒置显微镜的详细设计.
- 为了实现两个不同的暗场显微镜模式:总内部反射散射和交叉极化反射散射.
- 实现对成像平面稳定进行主动反.
主要方法:
- 显微镜的设计使用一个单一的目标镜头.
- 通过与Thorlabs系统兼容的可互换模式转向元件实现了两个暗场模式.
- 活动反控制稳定了对微分显微镜的成像平面.
- 对单个纳米粒子进行了长期散射测量,以验证稳定性.
主要成果:
- 一个多功能倒置显微镜设计是详细的.
- 该系统支持在总内部反射散射和交叉偏振反散射模式之间切换.
- 主动反成功稳定了成像平面,通过纳米粒子散射测量验证.
- 该设置显示了扩展到同时散射,光和共聚焦成像的潜力.
结论:
- 呈现的倒置显微镜设计为暗场散射应用提供了灵活性.
- 主动反稳定增强纳米粒子研究的测量稳定性.
- 模块化设计促进了多种成像模式的未来整合.
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