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Title:Phase derivative microscopy of biological cells and tissues
Author(s):Kim, Tae Woo
Advisor(s):Popescu, Gabriel
Department / Program:Electrical & Computer Eng
Discipline:Electrical & Computer Engr
Degree Granting Institution:University of Illinois at Urbana-Champaign
Cell analysis
Coherence Imaging
Optical pathology
Tissue characterization
Abstract:Phase derivative microscopy (PDM), including Laplace field microscopy (LFM) and gradient field microscopy (GFM), generates high contrast images of transparent specimens. These methods utilize spatial light modulation at the Fourier plane of a bright field microscope to optically obtain the derivatives of the phase and increase the contrast of the final image. The controllable spatial modulation pattern allows obtaining both the first-order and the second-order derivative of the phase. Compared to differential interference contrast (DIC) microscopy, which is a traditional method of imaging the derivative of the phase, PDM shows higher stability because there are no mechanically moving parts involved in the operation. More importantly, unlike DIC, PDM does not use polarizing optics and, thus, it is applicable to birefringent samples. Furthermore, because it is a single-shot technique, PDM allows acquisition speed as fast as the detector allows, and therefore, it is suitable for studying live biological samples. This thesis introduces the principle of PDM, the setup, and also applications of PDM, including high contrast imaging, live cell dynamics study, and unstained tissue biopsies.
Issue Date:2013-05-24
Rights Information:Copyright 2013 Tae Woo Kim
Date Available in IDEALS:2013-05-24
Date Deposited:2013-05

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