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http://dx.doi.org/10.3807/HKH.2007.18.2.117

Twin-Image Elimination in In-line Digital Holography Microscope  

Cho, Hyung-Jun (Department of Physics, Cheju National University)
Yu, Young-Hun (Department of Physics, Cheju National University)
Publication Information
Korean Journal of Optics and Photonics / v.18, no.2, 2007 , pp. 117-121 More about this Journal
Abstract
A fundamental problem in the in-line digital holography microscope is that the real image and virtual image and zero-order image are not separated spatially. In this paper, we have eliminated the zero-order noise by an averaging method and the twin image is divided using a geometrical set-up in an in-line digital holographic microscope. The size of the virtual image depends on the distance between the objective lens and the hologram plane and on the distance between the hologram plane and the image plane. We found that the virtual image size is smallest when the distance between the objective lens and the hologram plane is equal to the back focal length of the objective lens. We could divide the virtual image and real image by controlling the distance between the hologram plane and the objective lens.
Keywords
Holography; Digital holography; Twin images;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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