光学
显微镜
分辨率(逻辑)
数值孔径
材料科学
图像分辨率
显微镜
衍射
摄影术
光圈(计算机存储器)
热点(计算机编程)
物理
波长
计算机科学
人工智能
操作系统
声学
作者
Ning Xu,Guoxuan Liu,Qiaofeng Tan
摘要
Diffractive super-resolution spot arrays offer the possibility of adjustable super-resolution microscopic imaging. By inserting a phase-only diffractive optical element (DOE) into the illumination system of a standard microscope, super-resolution information of the sample can be obtained by spots. Here, we report an adjustable super-resolution microscopy (ASM) that the imaging resolution and the number of spot arrays can be adjusted by DOEs. The results of 3 × 3 and 5 × 5 spot arrays with 50% and 70% of the Airy spot size are, respectively, realized to support the flexibility of the ASM. The resolution test target was used as a sample to show the ASM can achieve about double-resolution experimentally, illuminated by a uniform 3 × 3 spot array with 50% of the Airy spot size under a small numerical aperture objective. Moreover, imaging of cellular mitochondria was performed, substantially realized resolution beyond the diffraction limit. The ability to adjust the super-resolution of microscopy using DOEs is of great importance for further nanoscale imaging.
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