Parallel on-axis holographic phase microscopy of biological cells and unicellular microorganism dynamics.
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We apply a wide-field quantitative phase microscopy technique based on parallel two-step phase-shifting on-axis interferometry to visualize live biological cells and microorganism dynamics. The parallel on-axis holographic approach is more efficient with camera spatial bandwidth consumption compared to previous off-axis approaches and thus can capture finer sample spatial details, given a limited spatial bandwidth of a specific digital camera. Additionally, due to the parallel acquisition mechanism, the approach is suitable for visualizing rapid dynamic processes, permitting an interferometric acquisition rate equal to the camera frame rate. The method is demonstrated experimentally through phase microscopy of neurons and unicellular microorganisms.
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Assistant Professor of the Practice of Psychology and Neuroscience
Dr. Newpher teaches and advises for Duke's Undergraduate Studies in Neuroscience program. He also directs the Summer Neuroscience Program of Research in the Duke Institute for Brain Sciences. Dr. Newpher earned his Ph.D. in molecular biology from Case Western Reserve University. He then came to Duke to receive postdoctoral training in the Department of Neurobiology, where his research focused on identifying key molecular mechanisms that underlie learning-related synaptic
Professor of Biomedical Engineering
Dr. Wax's research interests include optical spectroscopy for early cancer detection, novel microscopy and interferometry techniques. The study of intact, living cells with optical spectroscopy offers the opportunity to observe cellular structure, organization and dynamics in a way that is not possible with traditional methods. We have developed a set of novel spectroscopic techniques for measuring spatial, temporal and refractive structure on sub-hertz and sub-wavelength scales based
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