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Solid Immersion Lens
In article number 2207596, Zushun Xu, Jing Zeng, Wen Fan, and co‐workers report a TiO2 nanoparticle‐assembled solid immersion lens (SIL) with excellent transparency, high refractive index and easy‐to‐handle size. This TiO2 SIL can provide a fast, wide‐field, real‐time, non‐destructive and low‐cost solution for improving the quality of optical microscopic observation of various...
Super‐resolution optical imaging techniques can break the optical diffraction limit, thus providing unique opportunities to visualize the microscopic world at the nanoscale. Although near‐field optical microscopy techniques have been proven to achieve significantly improved imaging resolution, most near‐field approaches still suffer from a narrow field of view (FOV) or difficulty in obtaining wide‐field...