Fresnel incoherent correlation holography (FINCH) was a milestone in incoherent holography. In this roadmap, two pathways, namely the development of FINCH and applications of FINCH explored by many prominent research groups, are discussed. The current state-of-the-art FINCH technology, challenges, and future perspectives of FINCH technology as recognized by a diverse group of researchers contributing to different facets of research in FINCH have been presented.
Keywords: Fresnel incoherent correlation holography; color holography; computational coherent superposition; digital holographic microscopy; digital holography; fluorescence microscopy; incoherent holography; lattice light-sheet holography; metasurfaces; multiplexed imaging; phase-shifting interferometry; single-molecule localization microscopy.