Twin-image reduction method using a diffuser for phase imaging in-line digital holography

Phase imaging by digital holography is widely used. An in-line optical setup is preferable for a practical use. A twin image, however, is a serious obstacle to achievement of high-quality phase imaging in in-line digital holography. For in-line digital holography, a time-division phase-shifting meth...

Full description

Saved in:
Bibliographic Details
Published in:Applied optics (2004) 2018-07, Vol.57 (20), p.5652
Main Authors: Oe, Kazusa, Nomura, Takanori
Format: Article
Language:English
Subjects:
Diffusers
Digital imaging
Division
Holography
Image reconstruction
Optical components
Recording
Reduction
Signal processing
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Phase imaging by digital holography is widely used. An in-line optical setup is preferable for a practical use. A twin image, however, is a serious obstacle to achievement of high-quality phase imaging in in-line digital holography. For in-line digital holography, a time-division phase-shifting method or a wave-splitting phase-shifting method is used to eliminate the twin image. The former requires multiple exposures, and the latter requires specially designed optical elements. To solve these problems, a twin-image reduction method using a diffuser is proposed. In the proposed method, recording a digital hologram using a diffuser and signal processing enable reduction of the twin image on a reconstructed plane. A preliminary experimental result confirms the feasibility of the proposed method.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.57.005652