Published 4 issues per year
ISSN Print: 1065-3090
ISSN Online: 1940-4336
Indexed in
OBSERVING BUBBLES USING PHASE-RETRIEVAL HOLOGRAPHY
ABSTRACT
In-line holography is a way to measure the sizes of small bubbles in three-dimensional space. However, the image quality is limited because lack of phase information causes the real and virtual images to overlap. This twin-image problem leads to false detection when measuring bubble diameters. Phase-retrieval holography is a way to recover the missing phase information. It is retrieved by an iterative calculation using two or more holograms recorded at different positions. In this study, we focus on phase-retrieval holography involving two recorded holograms. The purpose of this study is to show that this method suppresses the effects of the twin-image problem. Using phase-retrieval holography, we obtain clear reconstructed images with high contrast.
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Nakatani Yasuhiro, Tanaka Yohsuke, Murata Shigeru, Measurement of particle-size distribution based on particle image elongations reconstructed by phase retrieval holography, 2018 Joint Symposia on Optics, 2018. Crossref
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Tanaka Yohsuke, Matsushi Hiroki, Murata Shigeru, Observation of Daphnia using Phase Retrieval Holography with Two High-Speed Cameras, Digital Holography and Three-Dimensional Imaging 2019, 2019. Crossref
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De la Torre I. Manuel H., Mendoza Santoyo Fernando, Flores M. J. Mauricio, Hernandez-M. M. del Socorro, Gabor’s holography: seven decades influencing optics [Invited], Applied Optics, 61, 5, 2022. Crossref