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Improving qualitative phase imaging using error eliminating assist of two-steps phase shifting method in digital holography system
Author(s): Chantira Boonsri; Thitiya Seesan; Prathan Buranasiri
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Paper Abstract

In this research, the mapping of the path length difference that involves the specimen is proposed for improving qualitative phase imaging (QPI) techniques. Phase-quality images are developed using the principle of phase- shift in digital holography and then this system has been applied to investigate biological cells and tissues. In our setup a microscopic digital holographic interferometer with polarizers and a quarter wave plate has been designed for detecting cells specimen. The resulting image contains information of the thickness in any area and the refractive index of the specimen. Moreover, a quadrature – phase shifting holography (QPSH) technique is purposed. Experimental results are shown improving QPI. Merits and limitations of this method are also described.

Paper Details

Date Published: 4 March 2019
PDF: 6 pages
Proc. SPIE 10887, Quantitative Phase Imaging V, 108872G (4 March 2019); doi: 10.1117/12.2507775
Show Author Affiliations
Chantira Boonsri, King Mongkut's Institute of Technology Ladkrabang (Thailand)
National Astronomical Research Institute of Thailand (Thailand)
Thitiya Seesan, King Mongkut's Institute of Technology Ladkrabang (Thailand)
Prathan Buranasiri, King Mongkut's Institute of Technology Ladkrabang (Thailand)

Published in SPIE Proceedings Vol. 10887:
Quantitative Phase Imaging V
Gabriel Popescu; YongKeun Park, Editor(s)

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