Phase conjugate digital inline holography (PCDIH)

Digital inline holography (DIH) provides instantaneous three-dimensional (3D) measurements of diffracting objects; however, phase disturbances in the beam path can distort the imaging. In this Letter, a phase conjugate digital inline holography (PCDIH) configuration is proposed for removal of phase...

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Bibliographic Details
Published in:Optics letters 2018-02, Vol.43 (4), p.803-806
Main Authors: Guildenbecher, Daniel R, Hoffmeister, Kathryn N Gabet, Kunzler, W Marley, Richardson, Daniel R, Kearney, Sean P
Format: Article
Language:English
Subjects:
Digital holography
ENGINEERING
MATERIALS SCIENCE
Phase conjugation
Three-dimensional image processing
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Summary:Digital inline holography (DIH) provides instantaneous three-dimensional (3D) measurements of diffracting objects; however, phase disturbances in the beam path can distort the imaging. In this Letter, a phase conjugate digital inline holography (PCDIH) configuration is proposed for removal of phase disturbances. Brillouin-enhanced four-wave mixing produces a phase conjugate signal that back propagates along the DIH beam path. The results demonstrate the removal of distortions caused by gas-phase shocks to recover 3D images of diffracting objects.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.43.000803