Photon-counting digital holography under ultraweak illumination

摘要

Digital holography based on photon counting under ultraweak illumination was demonstrated. A hologramnwas recorded with two-dimensional scanning of an optical fiber connected to a single-photon counting de-ntector under an illumination of 43 photons per second, and the object image was clearly reconstructed in ancomputer from the hologram. The dependence of hologram quality on the illumination light intensity wasnestimated from the contrast and phase deviation of interference fringes obtained by photon-countingnmeasurements. © 2009 Optical Society of America