Macro to nano specimen measurements using photons and electrons with digital holographic interferometry: a review

Abstract

Today digital holographic interferometry (DHI) is considered a modern full-field non-destructive technique that allows generating 3D quantitative data of a wide variety of specimens. There are diverse optical setups for DHI that enable the study of specimens in static and dynamic conditions: it is a viable alternative to characterize a wide diversity of parameters in the micro and macro world by conducting repeatable, reliable and accurate measurements that render specimen data, e.g., displacements, shape, spatial dimensions, physiological conditions, refractive indices, and vibration responses. This paper presents a review and progress on the most significant topics, contributions and applications involving DHI for the study of different specimens such as: cells, bio tissues, grains, insects, and nano-structures. For most of the research work involving macro and micro specimens the wave-like source used in the measurements were photons from a laser, while the studies carried out in the nano regime used the wave-like nature of the electron.

Simultaneous dual-wavelength digital holographic microscopy as a tool for the analysis of keratoacanthoma skin samples

“…The holograms are processed with the angular spectrum algorithm or Fourier transform method to retrieve the ϕ λn (r), yielding [30][31][32]…”

Towards the Development of Portable and In Situ Optical Devices for Detection of Micro-and Nanoplastics in Water: A Review on the Current Status

“…Another type of optical method that can be used for the identification of both MPs and organic particles to yield information on the size and thickness of the particles could be based on digital holography (DH) [ 126 ]. In this method, one uses the imaging principle of holography based on a coherent laser light source.…”

Emerging scientific and industrial applications of digital holography: an overview

“…Wavefront of one hologram is subtracted from the wavefront of other hologram to generate interference fringes, corresponding to displacement/ distortion that the object underwent during the time interval of recording of the holograms. HI precisely measure micro and nanometer displacements [27][28][29][30], vibrations [31,32], refractive index and phase [33,34] and thus find applications in a wide range of processes. Hence, holographic interferometric techniques have been widely used for study and NDT applications including testing and quality control of industrial and scientific products [4,[22][23][24][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54], space and avionic components [42][43][44][45], automotive components [45,46], machine tools [47,48] etc.…”