
Proceedings Paper
Common-path diffraction optical tomography with a low-coherence illumination for reducing speckle noiseFormat | Member Price | Non-Member Price |
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Paper Abstract
Common-path diffraction optical tomography (cDOT) is a non-invasive and label-free optical holographic technique for measuring both the three-dimensional refractive index (RI) tomograms and two-dimensional dynamic phase images of a sample. Due to common-path geometry, cDOT provides quantitative phase imaging with high phase sensitivity. However, the image quality of the cDOT suffers from speckle noise; the use of a monochromatic laser inevitably results in the formation of parasitic fringe patterns in measured quantitative phase images. Here, we present a technique to reduce speckle noise in the cDOT using a low-coherence illumination source. Utilizing a Ti-sapphire pulsed laser in the cDOT, we achieved the reduction of speckle noise in both the three-dimensional RI tomograms and two-dimensional dynamic phase images.
Paper Details
Date Published: 11 March 2015
PDF: 6 pages
Proc. SPIE 9336, Quantitative Phase Imaging, 933629 (11 March 2015); doi: 10.1117/12.2175845
Published in SPIE Proceedings Vol. 9336:
Quantitative Phase Imaging
Gabriel Popescu; YongKeun Park, Editor(s)
PDF: 6 pages
Proc. SPIE 9336, Quantitative Phase Imaging, 933629 (11 March 2015); doi: 10.1117/12.2175845
Show Author Affiliations
Seungwoo Shin, KAIST (Korea, Republic of)
Youngchan Kim, Imperial College London (United Kingdom)
KyeoReh Lee, KAIST (Korea, Republic of)
Kyoohyun Kim, KAIST (Korea, Republic of)
Youngchan Kim, Imperial College London (United Kingdom)
KyeoReh Lee, KAIST (Korea, Republic of)
Kyoohyun Kim, KAIST (Korea, Republic of)
Young-Jin Kim, Nanyang Technological Univ. (Singapore)
HyunJoo Park, KAIST (Korea, Republic of)
YongKeun Park, KAIST (Korea, Republic of)
HyunJoo Park, KAIST (Korea, Republic of)
YongKeun Park, KAIST (Korea, Republic of)
Published in SPIE Proceedings Vol. 9336:
Quantitative Phase Imaging
Gabriel Popescu; YongKeun Park, Editor(s)
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