期刊
NANO LETTERS
卷 23, 期 10, 页码 4311-4317出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.3c00549
关键词
super-resolution; microsphere; three-dimensional imaging; nanoscale imaging; atomic force microscopy; self-sensing cantilever
Microsphere-assisted super-resolution imaging technology uses white light to provide label-free, real-time dynamic imaging, with potential applications in living systems and nanoscale detection of semiconductor chips. However, the current scanning imaging method based on microsphere superlens cannot achieve super resolution optical imaging of complex curved surfaces.
Microsphere-assisted super-resolution imaging technology offers label-free, real-time dynamic imaging via white light, which has potential applications in living systems and the nanoscale detection of semiconductor chips. Scanning can aid in overcoming the limitations of the imaging area of a single microsphere superlens. However, the current scanning imaging method based on the microsphere superlens cannot achieve super resolution optical imaging of complex curved surfaces. Unfortunately, most natural surfaces are composed of complex curved surfaces at the microscale. In this study, we developed a method to overcome this limitation through a microsphere superlens with a feedback capability. By maintaining a constant force between the microspheres and the sample, noninvasive super-resolution optical imaging of complex abiotic and biological surfaces was achieved, and the three-dimensional information on the sample was simultaneously obtained. The proposed method significantly expands the universality of scanning microsphere superlenses for samples and promotes their widespread use.
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