Overview of techniques applicable to self-interference incoherent digital holography

Abstract

Self-interference incoherent digital holography (SIDH) retrieves the complex hologram from the object illuminated by the incoherent light. Supported by the adaptive optic feature, SIDH is readily applicable to the ocular imaging to investigate the human retinal cells. Considering the practical issues, issues related to resolution, phase-shifting, and contrast should be addressed to implement the viable SIDH system which is capable of recording the holographic information of human retinal cells under the incoherent illumination. Super resolution image reconstruction technique can be directly applied to SIDH to enhance the resolution of the system without any change of configuration. We present the improved way to incorporate the phase-shifting itself into the lateral shift required by the super resolution technique. To deal with the phase-shifting issue, we present an arbitrary phase shift retrieval algorithm which can reduce the number of phase-shift and accept the blind phase-shift. The single-shot imaging is also possible by adopting the off-axis configuration of SIDH. We will provide the detailed procedures to retrieve the complex hologram using the proposed arbitrary phase shifting algorithm and the off-axis configuration.

Three-Dimensional Imaging by Self-Reference Single-Channel Digital Incoherent Holography

“…Among the works which have been constructed on the basis of FINCH, in recent years, are the FINCH based fluorescence microscope (FINCHSCOPE) [49] and its most current, highly efficient version based on a liquid crystal gradient index lens [50], making the FINCHSCOPE highly appealing for biological applications. A noteworthy FINCH-related technique is the self-interference incoherent digital holography (SIDH), in which the SLM-aided single channel of FINCH is replaced by a modified Michelson interferometer with two mirrors of different spherical curvatures [51]–[53]. Another interesting design in this context is a FINCH-like system with a wide field-of-view that is achieved using an optical relay system placed between two main components of FINCH: the objective lens and the SLM [54].…”

Incoherent digital holography with phase-only spatial light modulators

“…Another notable method, also based on the working concept of FINCH, but without any SLMs, is the self-interference incoherent digital holography (SIDH). 39,40 In SIDH, two mirrors of different spherical curvatures are *Address all correspondence to: Joseph Rosen, E-mail: rosen@ee.bgu.ac.il incorporated into a modified Michelson interferometer that replaces the single-channel design of FINCH. Other tasks, besides holographic imaging, have been successfully demonstrated including an anisotropic edge contrast enhancement of 3-D objects, achieved by displaying special phase patterns on the SLM in order to create a point-spread function with a vortex structure.…”

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.…”