Fluorescence microscopy is indispensable in nanoscience and biological sciences. The versatility of labeling target structures with fluorescent dyes permits to visualize structure and function at a subcellular resolution with a wide field of view. Due to the diffraction limit, conventional optical microscopes are limited to resolving structures larger than 200 nm. The resolution can be enhanced by near-field and far-field super-resolution microscopy methods. Near-field methods typically have a limited field of view and far-field methods are limited by the involved conventional optics. Here, we introduce a combined high-resolution and wide-field fluorescence microscopy method that improves the resolution of a conventional optical microscope by exploiting correlations in speckle illumination through a randomly scattering high-index medium: Speckle correlation resolution enhancement (SCORE). As a test, we collect two-dimensional fluorescence images of 100-nm diameter dye-doped nanospheres. We demonstrate a deconvolved resolution of 130 nm with a field of view of 10 x 10 \mu m 2 .
|Publication status||Published - 2014|
Yilmaz, H. (Author), van Putten, E. G. (Author), Bertolotti, J. (Author), Lagendijk, A. (Author), Vos, W. L. (Author), & Mosk, A. (Author). (2014). Exploiting speckle correlations to improve the resolution of wide-field fluorescence microscopy. Web publication/site, Retrieved from http://arxiv.org/abs/1410.2079