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Digital Fourier transform holography using a beam displacer
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1  Department of Physics, Indian Institute of Technology (Banaras Hindu University) Varanasi, India
Academic Editor: VIJAYAKUMAR ANAND

Published: 06 March 2023 by MDPI in Holography Meets Advanced Manufacturing session Holography posters
Abstract:

Fourier transform holography overcomes the phase recovery challenge by recording complex field information of the object in an interference pattern recorded at the far field, i.e., Fourier plane. Moreover, this geometry helps to reconstruct the complex field of the object from a single Fourier transform which is an attractive feature for numerical reconstruction of the digitally recorded hologram. In this paper, we present a nearly common path experimental design for recording of a digital Fourier holographic hologram using a beam displacer, and recover the complex valued objects using the Fourier analysis. The performance of the system is experimentally examined for different objects.

Keywords: Digital Fourier transform holography; phase imaging; common path configuration
Comments on this paper
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Cole Mackenzie
Fourier transform holography addresses the phase recovery difficulty by capturing the object's complex field information as an interference pattern at the far-field or Fourier plane bitlife.
The Fourier plane geometry allows the object's complex field to be reconstructed from a single Fourier transform, which is a desirable property for numerical reconstruction of digitally recorded holograms.




 
 
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