Photon-counting digital holography under ultraweak illumination
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Updated: Jun 24, 2026
Digital Inline Holographic Microscopy (DIHM) of Weakly-scattering Subjects
Published on: February 8, 2014
Masaki Yamamoto1, Hirotsugu Yamamoto, Yoshio Hayasaki
1Institute of Technology and Science, The University of Tokushima, Tokushima, Japan.
Abstract:
Digital holography based on photon counting under ultraweak illumination was demonstrated. A hologram was recorded with two-dimensional scanning of an optical fiber connected to a single-photon counting detector under an illumination of 43 photons per second, and the object image was clearly reconstructed in a computer from the hologram. The dependence of hologram quality on the illumination light intensity was estimated from the contrast and phase deviation of interference fringes obtained by photon-counting measurements.
