Combination of the resolution enhancing image inversion microscopy with digital holography

We propose a method to combine image inversion microscopy (IIM) with digital holography. By using this technique we are able to avoid some disadvantages of the IIM, like the use of a stabilized image inversion interferometer or the scanning process. Furthermore, we present a setup and some measurements as proof of principle. The point spread function (PSF) of a holographic image inversion microscope is compared to the conventional PSF. We demonstrate that the distance between the first zeros is reduced by a factor of about two. Additionally, we recorded images of ten gratings to demonstrate the enhanced resolution and to measure a part of the optical transfer functions of the coherent, the incoherent and the image inverted case.