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Optical Engineering

Rotation error correction by numerical focus adjustment in tomographic phase microscopy
Author(s): Yunseong Jeon; Chung-Ki Hong
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Paper Abstract

The tomographic imaging technique in digital holography is improved and applied to the measurements of the refractive index distributions of two kinds of optical fiber. They are reconstructed from a set of quantitative phase maps obtained with a digital holographic method as the object is rotated for 180 deg. The errors of the phase maps caused by the defocusing due to the unwanted shift of the object relative to the rotation axis are corrected by numerical focus adjustment. The tomographic images of the fiber samples show the effectiveness of our method.

Paper Details

Date Published: 1 October 2009
PDF: 6 pages
Opt. Eng. 48(10) 105801 doi: 10.1117/1.3242833
Published in: Optical Engineering Volume 48, Issue 10
Show Author Affiliations
Yunseong Jeon, Pohang Univ. of Science and Technology (Korea, Republic of)
Chung-Ki Hong, Pohang Univ. of Science and Technology (Korea, Republic of)

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