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Article Dans Une Revue Optical Engineering Année : 2019

Super-resolution imaging within reach

Résumé

Although several optical techniques have been recently developed in order to overcome the resolution limit in microscopy, the imaging of sub-wavelength features is still a real challenge. In practise, super-resolution techniques remain difficult to build or are photo-toxic for the biological samples. However, microsphere-assisted microscopy has recently made super-resolution imaging accessible to scientists (e.g. optical metrologists, engineers and biologists). This paper presents an easy-to-implement optical setup to perform full-field and contactless super-resolution measurements of nanostructured media or biological elements. For this purpose, a classical microscope was enhanced by introducing a transparent microsphere. We show that this rather simple approach makes it possible to achieve a lateral resolution of 200 nm in air, i.e. the visualization of feature sizes of 100 nm.

Dates et versions

hal-02391344 , version 1 (03-12-2019)

Identifiants

Citer

Stéphane Perrin, Paul Montgomery, Sylvain Lecler. Super-resolution imaging within reach. Optical Engineering, 2019, 58 (05), pp.1. ⟨10.1117/1.OE.58.5.050501⟩. ⟨hal-02391344⟩
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