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Ströhl F, Opstad IS, Tinguely J-C, Dullo FT, Ahluwalia BS, Kaminski CF. "Label-free nanoscopy enabled by coherent imaging with photonic waveguides" Adv. in Micro. Imaging II: 11076:78-80 (2019) DOI pdf 


Abstract

In this project it was found that Fourier ptychographic microscopy can be improved far beyond its conventional limits via waveguide-based optical systems. Extensive in silico studies showed that images obtained on high-refractive index material waveguide chips in conjunction with hyperspectral illumination light and finely designed waveguide geometries can be combined via a modified phase-retrieval algorithm to yield a resolution below 150 nm.