Image of Vero cells using a new technique, nonlinear focal modulation microscopy, which has a spatial resolution of ∼60 nm.

From the article:

Nonlinear Focal Modulation Microscopy
Guangyuan Zhao, Cheng Zheng, Cuifang Kuang, Renjie Zhou, Mohammad M. Kabir, Kimani C. Toussaint, Jr., Wensheng Wang, Liang Xu, Haifeng Li, Peng Xiu, and Xu Liu
Phys. Rev. Lett. 120, 193901 (2018)

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