Review of Incoherent Digital Holography: Applications to Multidimensional Incoherent Digital Holographic Microscopy and Palm-Sized Digital Holographic Recorder—Holosensor

Abstract

We review advancements in incoherent digital holography (IDH) with an image sensor and its applications to multidimensional microscopy and a palm-sized hologram recorder termed “holosensor”. There are two types of representative IDH technique: IDH with a structured illumination and a single photodetector termed optical scanning holography and self-interference IDH. The latter IDH is a technique to obtain an incoherent digital hologram by modulating an incoherent light wave between an object and an image sensor. Multidimensional information such as three-dimensional space and wavelengths is simultaneously recorded without changing optical filters by introducing interferometric techniques invented in laser holography. Applications to high-speed color-multiplexed holographic fluorescence microscopy, single-shot incoherent full-color holographic microscopy with white light, and a palm-sized multidimensional incoherent hologram recorder have been developed using multidimensional IDH systems. Schematics and experimental results obtained using IDH techniques, incoherent holographic microscopy systems, and compact IDH systems are introduced.

Technology Selection for Inline Topography Measurement with Rover-Borne Laser Spectrometers

“…Incoherent digital holography (IDH, see [87] for overview) involves minimizing the optical path length differences to allow use of low-coherence light and prevent speckle. Self-interference of the object field duplicates achieves this, akin to shearing interferometry.…”

“…Varying the parameters of crystal length, angle and material affects K lin , scaling depth resolution and range. Another issue is dynamic range of detection for full-field self-referencing IDH [87]. Overlapping interferograms from nearby object points are incoherently added at the detector, causing low visibility of individual interferograms and a bias towards bright object points [93], burdening the limited detection dynamic range.…”

Roadmap of incoherent digital holography

“…It is notable that phase-shifting DH was proposed and implemented for CH and spatially incoherent light before the proposal of famous phase-shifting DH using a laser [30]. A compact single-path holographic interferometer based on the combination of Conoscopic holography, a single-path polarimetric spectrometer [130], and CCS is proposed as another way of a multidimensional IDH system [195,196]. Various IDH techniques have been introduced in this roadmap article.…”

Incoherent Digital Holography for Multidimensional Motion Picture Imaging

“…Incoherent digital holography (IDH) [1][2][3][4][5][6][7][8][9][10][11][12][13][14] is a three-dimensional (3D) image-sensing technique using interference of light and spatially incoherent light. Interference fringe images that contain 3D information about an object are obtained, even for spatially and temporally incoherent light, by generating two waves from an object wave and utilizing selfinterference.…”

“…High-speed image sensing and robustness against external vibrations are important factors when constructing a multidimensional IDH system. Single-shot IDH [8][9][10][11][12][13][14] performed using single-shot phase-shifting [35][36][37] has been proposed as an IDH technique capable of satisfying the factors at play. In most of this IDH technique, holographic 3D imaging can be carried out using single-shot exposure of a polarization image sensor and a single-path interferometer.…”