Virginia TechIndebetouw, Guy J.Tada, YoshitakaRosen, JosephBrooker, Gary2014-03-142014-03-142007-02Guy Indebetouw, Yoshitaka Tada, Joseph Rosen, and Gary Brooker, "Scanning holographic microscopy with resolution exceeding the Rayleigh limit of the objective by superposition of off-axis holograms," Appl. Opt. 46, 993-1000 (2007); doi: 10.1364/ao.46.0009931559-128Xhttp://hdl.handle.net/10919/25890We present what we believe to be a new application of scanning holographic microscopy to superresolution. Spatial resolution exceeding the Rayleigh limit of the objective is obtained by digital coherent addition of the reconstructions of several off-axis Fresnel holograms. Superresolution by holographic superposition and synthetic aperture has a long history, which is briefly reviewed. The method is demonstrated experimentally by combining three off-axis holograms of fluorescent beads showing a transverse resolution gain of nearly a factor of 2.en-USIn Copyrightsuperresolution optical-systembandwidth product adaptationshiftingdigital holographyfluorescence microscopyclassical limitimage-formationcontrastArticle - Refereedhttp://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-6-993https://doi.org/10.1364/ao.46.000993